The Unsung Naval Battles That Rewrote the 1971 War
When the 1971 war is remembered, attention often goes to the battles fought across East Pakistan, the western front, and the rapid advance toward Dhaka. Yet the war was also shaped by a less visible struggle on rivers, coastlines, harbours, and open seas.
Maritime operations played an important role in cutting Pakistan’s ability to move troops, fuel, ammunition, and supplies. The Indian Navy attacked Karachi, established a blockade around East Pakistan, and supported operations that restricted Pakistan’s naval freedom of movement. At the same time, Bengali naval commandos carried out daring sabotage missions against shipping and river ports.
These operations were very different from conventional land battles. Some depended on missile boats and carrier aircraft; others depended on swimmers carrying limpet mines into heavily guarded ports. Together, they demonstrated how control of maritime routes could influence a war far beyond the shoreline.
1. Operation Trident: The Strike on Karachi
One of the most dramatic naval actions of the 1971 war came on the night of December 4.
Karachi was the principal naval base and an important commercial port of West Pakistan. Its harbour handled major quantities of shipping and fuel, while the Pakistan Navy’s headquarters was located there. A successful attack could therefore have military as well as economic consequences.
The Indian Navy created a compact strike force built around three Vidyut-class missile boats:
- INS Nipat
- INS Nirghat
- INS Veer
They were supported by INS Kiltan, INS Katchall and the fleet tanker INS Poshak. The three missile boats formed part of the 25th Missile Boat Squadron, popularly associated with the “Killer Squadron.” Commander Babru Bhan Yadav led the task group.
The small missile boats had an important limitation: their relatively short endurance meant they could not simply sail from Bombay to Karachi and remain on station indefinitely. The operation therefore depended on careful planning, refuelling and a nighttime approach.
The attack force moved toward Karachi after remaining farther offshore during the day. At night, the boats closed the distance and began identifying targets.
The sinking of PNS Khaibar
INS Nirghat detected a major Pakistani naval target and engaged it with Soviet-made SS-N-2B Styx anti-ship missiles.
The target was PNS Khaibar, a Battle-class destroyer.
The first missile struck the destroyer and caused severe damage. A second missile followed, hitting the ship’s machinery area. Khaibar subsequently sank. Contemporary accounts describe the Pakistani crew initially believing the incoming missile was an aircraft threat and attempting to engage it with anti-aircraft weapons.
The destruction of Khaibar demonstrated the potential of relatively small missile boats against much larger surface combatants.
Other targets
INS Nipat attacked the merchant vessel MV Venus Challenger and PNS Shah Jahan. Venus Challenger was destroyed, while Shah Jahan was heavily damaged. INS Veer attacked the minesweeper PNS Muhafiz, which was sunk.
The attack also caused extensive fires around Karachi’s fuel-storage area. The damage to the port’s fuel infrastructure added another layer to the operation’s strategic impact.
Rather than remaining in the area and risking a counterattack, the Indian force withdrew after completing its attack.
The operation was subsequently commemorated through India’s Navy Day, observed annually on December 4.
2. Why Operation Trident Mattered
Operation Trident was significant for more than the number of ships damaged or destroyed.
It demonstrated several principles of modern naval warfare:
Speed could compensate for size.
The missile boats were much smaller than the destroyers they attacked, but their missiles allowed them to engage targets from considerable distances.
Surprise was decisive.
The nighttime approach reduced the opportunity for an effective Pakistani response.
Long-range weapons changed the tactical equation.
The Styx missile gave the attacking boats a weapon capable of striking larger ships without requiring a traditional gun battle.
A harbour could itself become a strategic target.
Attacking fuel facilities and shipping affected the wider logistical system rather than merely the enemy fleet.
The raid was followed by further Indian naval operations against Karachi later in the war, including Operation Python.
3. Operation X and the Rise of the Bengali Naval Commandos
While missile boats were striking Karachi, another form of naval warfare was developing thousands of kilometres away.
The Bangladesh Liberation War created an unusual maritime force: Bengali fighters trained to operate underwater and attack ships inside ports and rivers.
The foundations of this force were connected to Bengali personnel who had served in the Pakistan Navy.
In March 1971, Bengali submariners undergoing training in France decided to escape after the political and military crisis in East Pakistan intensified. Eight of them eventually reached India. Their experience became important in the creation of a specialized naval commando force. A training camp was subsequently established near Palashi on the Bhagirathi River, where Bengali guerrillas received specialized training.
The emerging force was designed for a very different type of war.
Its members did not need large warships.
They needed:
- Swimming ability
- Underwater navigation
- Explosives training
- Reconnaissance skills
- Knowledge of tides and currents
- Patience and concealment
- The ability to operate close to enemy-controlled ports
This was guerrilla warfare at sea.
Banglapedia also records the importance of naval operations by the freedom fighters and notes that shipping was attacked at locations including Mongla and the Poshur River.
4. Operation Jackpot: Sabotage from Beneath the Water
The most famous series of Bengali naval commando operations became associated with the name Operation Jackpot.
On the night of August 15, 1971, naval commandos launched coordinated attacks against important river and port facilities, including Chittagong, Chalna-Mongla, Narayanganj and Chandpur. Accounts describe approximately 176 combat swimmers participating in the major coordinated assault.
The objective was not to defeat the Pakistan Navy in a conventional fleet engagement.
It was to make shipping unsafe.
The commandos approached vessels underwater and attached limpet mines to vulnerable sections of the hull. After placing the explosives, they attempted to withdraw before the charges detonated.
The attacks damaged or destroyed numerous vessels and demonstrated that Pakistan could not assume that a ship inside a port was automatically safe.
5. The Importance of Timing and Secrecy
The naval commandos faced a difficult problem.
A large military operation could be detected through radio communications, troop movements or reconnaissance. The commandos therefore relied heavily on secrecy.
One unusual element associated with Operation Jackpot was the use of radio broadcasts as coded signals.
Songs broadcast over radio were reportedly used to communicate operational instructions without openly announcing the planned attacks. This allowed fighters scattered across different locations to recognize that an operation was about to begin.
The method illustrates the ingenuity required for guerrilla warfare when conventional communication systems are unavailable or unsafe.
The commandos also had to understand tides, currents and harbour conditions. In riverine Bangladesh, geography itself became part of the battlefield.
6. From Port Sabotage to a Wider Maritime Campaign
Operation Jackpot was not simply one night of attacks.
The naval commando campaign continued through the war.
Its broader purpose was to interfere with the movement of:
- Food
- Weapons
- Ammunition
- Fuel
- Military equipment
- Reinforcements
- Commercial cargo
The destruction or damage of vessels could have consequences far beyond the individual ship.
A damaged vessel might block a harbour.
A sunk ship could obstruct a channel.
A threatened port could require additional guards.
A disrupted shipping route could force supplies onto slower or less efficient alternatives.
This is one reason naval guerrilla warfare mattered disproportionately to the resources available to the liberation forces.
Banglapedia records, for example, that naval commando operations in the Mongla area destroyed ships carrying supplies and that 20 enemy ships were sunk in four operations there.
7. INS Vikrant and the Bay of Bengal
The eastern theatre presented India with a different naval challenge.
East Pakistan was geographically separated from West Pakistan by more than a thousand kilometres of Indian territory. Any large-scale reinforcement or evacuation from the west therefore depended heavily on air or sea routes.
The Indian Navy sought to close those maritime routes.
At the centre of the eastern naval campaign was India’s aircraft carrier INS Vikrant.
Vikrant had significant operational limitations in 1971, including propulsion problems. Nevertheless, it became an important platform for maintaining pressure against East Pakistani coastal positions. Historical accounts describe its role in the blockade and attacks against coastal and riverine targets.
Aircraft operating from the carrier could attack targets far beyond the reach of conventional naval guns.
The carrier’s aircraft included Hawker Sea Hawk fighter-bombers and Breguet Alizé aircraft used for maritime patrol and anti-submarine duties.
This combination gave India an important advantage: the navy could combine sea control with air power.
8. The Hunt for PNS Ghazi
Pakistan understood the importance of Vikrant.
The Pakistan Navy therefore sent its long-range submarine PNS Ghazi toward the eastern coast.
Ghazi was an American-built Tench-class submarine and was capable of operating over long distances. Its mission has generally been associated with searching for Vikrant and conducting operations around India’s eastern naval approaches.
India responded with deception.
Indian naval commanders knew that protecting Vikrant was critical and attempted to mislead the Pakistani submarine regarding the carrier’s actual location.
Vikrant was moved away from the area where Pakistan expected to find it, while Indian naval activity around Visakhapatnam helped create uncertainty.
This led to one of the most famous and controversial episodes of the 1971 naval war.
The sinking of Ghazi
During the night of December 3–4, 1971, PNS Ghazi sank off Visakhapatnam.
The Indian Navy’s historical account attributes the sinking to action involving INS Rajput and depth charges. Indian naval accounts describe explosions heard around midnight and subsequent underwater investigation of the wreck.
However, the precise cause of Ghazi’s destruction remains disputed.
The Indian account traditionally credits INS Rajput’s depth-charge attack.
Other analyses have suggested that an internal explosion, accidental detonation of mines, or another underwater event may have caused the submarine’s loss. The competing explanations are an important part of the historical record and should not be presented as settled fact.
What is not disputed is the consequence: Ghazi was lost with its crew, and the Pakistani Navy no longer had that submarine available to threaten India’s eastern naval forces.
9. The Bay of Bengal Becomes a Maritime Barrier
With the Pakistani submarine threat reduced and Vikrant operating from the eastern theatre, India was able to intensify its maritime campaign.
Indian naval aircraft attacked coastal military positions and shipping, while surface vessels restricted Pakistani movement.
The geography of East Pakistan worked against the Pakistani forces.
The region was dominated by:
- Major rivers
- River mouths
- Estuaries
- Marshlands
- Coastal waterways
- A relatively narrow network of important ports
This made river and sea transportation extremely important.
When those routes became dangerous or unavailable, Pakistani forces inside East Pakistan faced increasing logistical isolation.
The naval blockade therefore complemented the Indian Army’s land offensive rather than functioning as an independent campaign.
10. The Riverine Dimension of the War
One of the most distinctive features of the 1971 conflict was the importance of inland waterways.
Bangladesh’s geography meant that the distinction between “naval” and “land” warfare was often blurred.
A river could serve simultaneously as:
- A transport route
- A military supply line
- A defensive barrier
- A communication corridor
- A route for guerrilla infiltration
The Mukti Bahini exploited this environment.
Small boats and converted craft could operate in waters where conventional warships were less effective. Indian support also helped develop riverine capabilities for operations against Pakistani positions.
This became particularly important as the war moved toward its final phase.
11. Force Alfa and Riverine Operations
The maritime campaign was not limited to underwater sabotage.
Mukti Bahini forces also operated armed river craft, while Indian naval units supported operations in the eastern theatre.
The use of small boats allowed forces to approach targets through waterways and attack positions that were difficult to reach from conventional land routes.
This form of warfare had an important psychological effect.
Pakistani forces had to protect not only major cities and military bases but also:
- River ports
- Bridges
- Ferries
- Cargo vessels
- Inland waterways
- Supply depots
- Coastal installations
Every additional location requiring protection stretched available manpower.
12. Karachi and East Pakistan: Two Different Naval Problems
The western and eastern maritime campaigns had different objectives.
| Western Theatre | Eastern Theatre |
|---|---|
| Karachi was the primary target | East Pakistan’s ports and waterways were the main focus |
| Missile boats were central to major attacks | Carrier aviation and riverine forces were crucial |
| Major Pakistani surface ships were targeted | Shipping and coastal infrastructure were repeatedly attacked |
| Fuel and harbour facilities were attacked | Reinforcement and resupply routes were restricted |
| Operations sought to damage Pakistan’s naval and economic infrastructure | Operations sought to isolate Pakistani forces in East Pakistan |
The common principle was logistical disruption.
A navy does not fight only by sinking enemy warships.
It can also fight by making movement expensive, dangerous or impossible.
13. Why Maritime Logistics Mattered So Much
Military forces require a continuous flow of supplies.
An army needs:
- Food
- Ammunition
- Fuel
- Spare parts
- Medical supplies
- Communications equipment
- Reinforcements
If those supplies cannot reach the battlefield, the strength of a military force gradually declines.
In East Pakistan, Pakistan already faced a major geographic problem because the territory was separated from West Pakistan by India.
Once Indian forces achieved substantial control of surrounding air and maritime routes, the options for reinforcement became increasingly restricted.
The naval blockade therefore contributed to the wider isolation of Pakistani forces.
It was one part of a much larger military campaign involving the Indian Army, Indian Air Force, Mukti Bahini and other elements.
14. Naval Warfare as Psychological Warfare
The naval operations also affected morale.
A warship sinking outside Karachi, a merchant vessel being destroyed inside a port, or an unexplained explosion beneath a submarine could produce consequences beyond the immediate material damage.
Commanders had to consider questions such as:
Is the harbour safe?
Has another submarine entered the area?
Are merchant ships being targeted?
Can supplies move through the river?
Where is the enemy’s aircraft carrier?
Are apparently harmless boats actually carrying commandos?
This uncertainty forced commanders to spend resources on surveillance and defence.
Guerrilla warfare often aims to create precisely this kind of uncertainty.
15. The Technology Behind the Operations
The maritime campaign combined very different technologies.
Anti-ship missiles
The Styx missile gave Indian missile boats the ability to strike larger vessels from outside conventional gun range.
Aircraft carriers
INS Vikrant provided a mobile airfield from which aircraft could operate against coastal targets.
Submarines
PNS Ghazi demonstrated the strategic value of long-range submarines, even though the submarine itself was lost.
Limpet mines
Naval commandos used magnetic explosives to attack ships from below the waterline.
Small boats
Riverine craft allowed fighters to operate in shallow and restricted waterways.
Radio communications
Coded broadcasts helped coordinate clandestine operations.
The significance of 1971 lies partly in how these different technologies and methods were combined.
16. The Human Element
Technology alone did not determine the outcome.
Operation Trident required crews to operate small missile boats deep into a hostile environment.
The Bengali naval commandos had to swim through dangerous waters, approach guarded ships and place explosives while remaining undetected.
Carrier crews had to maintain aircraft operations despite Vikrant’s limitations.
Submarine crews operated for extended periods under difficult conditions.
These operations required training, discipline and detailed intelligence.
They also carried enormous personal risks.
17. A War Won on More Than One Battlefield
The final outcome of the 1971 war cannot be explained by naval operations alone.
The Indian Army’s rapid advances, the Indian Air Force’s operations, Mukti Bahini resistance, Pakistan’s strategic difficulties in East Pakistan, and the broader political and diplomatic environment all contributed to the result.
However, maritime warfare was an important supporting element.
The sea and river campaigns helped restrict the movement of Pakistani forces and supplies while preventing effective maritime reinforcement.
By December, Pakistani forces in East Pakistan were operating in an increasingly isolated strategic environment.
On December 16, 1971, Pakistani forces in East Pakistan surrendered to the joint command of Indian and Bangladeshi forces, leading to the emergence of Bangladesh as an independent state.
18. The Strategic Lessons of the 1971 Naval Campaign
The naval operations of 1971 offer several important lessons in military history.
1. Small forces can have strategic effects
The missile boats used in Operation Trident were tiny compared with the destroyers they attacked, yet their weapons allowed them to inflict disproportionate damage.
2. Logistics can be as important as combat
Destroying or disrupting supply vessels can weaken an army without directly attacking every soldier.
3. Geography matters
East Pakistan’s riverine and coastal geography created opportunities for both conventional naval forces and guerrilla fighters.
4. Deception can be as valuable as firepower
The campaign surrounding PNS Ghazi demonstrates the importance of misleading an adversary about the location and movements of high-value assets, even though the exact cause of Ghazi’s sinking remains historically contested.
5. Naval power extends beyond traditional fleet battles
The 1971 maritime campaign involved destroyers, missile boats, submarines and aircraft, but also swimmers, mines, fishing boats and river craft.
That combination made the campaign unusually diverse.
Conclusion
The naval history of the 1971 war is far more than a collection of ship-versus-ship engagements.
At Karachi, Indian missile boats demonstrated the destructive potential of surprise and stand-off weapons.
Inside the rivers and ports of East Pakistan, Bengali naval commandos showed how determined guerrilla forces could disrupt shipping using relatively simple equipment.
In the Bay of Bengal, INS Vikrant helped establish maritime pressure against East Pakistan, while the loss of PNS Ghazi removed a major submarine threat to India’s eastern naval operations.
These actions did not win the war by themselves. Instead, they formed an important part of a broader military campaign that combined land warfare, air power, naval operations, guerrilla resistance and political developments.
The central lesson of the 1971 maritime campaign is therefore not simply that ships were sunk. It is that control of movement can be as important as control of territory.
By attacking ships, ports, fuel facilities and supply routes—and by making maritime movement increasingly dangerous—the naval forces and maritime commandos helped reshape the strategic environment in which the final battles were fought.
The story of 1971 is consequently not only a story of armies advancing across land. It is also a story of ships moving through darkness, commandos swimming beneath harbour waters, aircraft striking coastal targets, and commanders using deception to protect their most valuable assets.
The sea was not a side theatre of the 1971 war.
It was one of the places where the war’s outcome was being decided.
Editorial note: I corrected a few points in the supplied draft where the historical record is more nuanced—especially the cause of the sinking of PNS Ghazi. The Indian Navy’s traditional account credits INS Rajput’s depth-charge attack, while other historical accounts dispute the precise cause.
Frequently Asked Questions
1. What were the major naval operations of the 1971 war?
Major maritime operations included Operation Trident, Operation Python, the Bengali naval commando campaign associated with Operation Jackpot, the blockade of East Pakistan, and operations involving INS Vikrant and PNS Ghazi.
2. What was Operation Trident?
Operation Trident was an Indian Navy missile-boat attack on Karachi Harbour conducted on the night of December 4, 1971. Indian missile boats attacked Pakistani naval vessels and shipping and caused significant damage to harbour and fuel facilities.
3. Which Indian Navy ships participated in Operation Trident?
The principal missile boats were INS Nipat, INS Nirghat, and INS Veer. They were supported by other naval vessels, including INS Kiltan, INS Katchall, and INS Poshak.
4. Which Pakistani warship was sunk during Operation Trident?
The Pakistani destroyer PNS Khaibar was sunk after being hit by missiles launched by INS Nirghat. The minesweeper PNS Muhafiz was also sunk during the operation.
5. What was Operation Jackpot?
Operation Jackpot refers to a series of coordinated maritime sabotage operations conducted by Bengali naval commandos during the Bangladesh Liberation War. The commandos attacked ships and maritime facilities at several ports and river locations in East Pakistan.
6. When did the major Operation Jackpot attacks take place?
The best-known coordinated attacks took place during the night of August 15, 1971, targeting important ports and waterways including Chittagong, Chalna-Mongla, Narayanganj, and Chandpur.
7. Who were the Bengali naval commandos?
They were Bengali fighters, including former naval personnel and trained volunteers, who received specialized underwater and sabotage training with Indian assistance. Their mission was to disrupt Pakistani shipping and supply routes.
8. How did naval commandos attack ships?
The commandos commonly used limpet mines attached to the underwater portions of ships. After placing the explosives, they attempted to withdraw before the mines detonated.
9. Why were river ports important during the 1971 war?
East Pakistan had an extensive network of rivers and waterways. These routes were important for transporting military supplies, personnel and commercial goods. Disrupting them could therefore interfere with Pakistani military logistics.
10. What was the role of INS Vikrant in the 1971 war?
INS Vikrant, India’s aircraft carrier, played an important role in the eastern naval theatre. Aircraft operating from the carrier conducted strikes against coastal and maritime targets and supported India’s effort to restrict Pakistani movement in and around East Pakistan.
11. What was PNS Ghazi?
PNS Ghazi was a long-range Pakistani submarine sent to the eastern coast during the 1971 war. Its mission is generally associated with searching for and potentially attacking INS Vikrant and conducting operations near India’s eastern naval approaches.
12. How did PNS Ghazi sink?
PNS Ghazi sank off Visakhapatnam during the night of December 3–4, 1971. The traditional Indian Navy account attributes its destruction to depth-charge action involving INS Rajput. Other historical interpretations propose that an internal explosion, possibly involving the submarine’s own mines or torpedoes, may have caused the sinking. The precise cause remains disputed.
13. Why was the sinking of PNS Ghazi important?
The loss of Ghazi removed an important Pakistani submarine threat from the eastern theatre. It also reduced the immediate danger to INS Vikrant and India’s eastern naval operations.
14. What was the significance of the Karachi attacks?
The attacks demonstrated that relatively small missile boats could threaten larger warships and important harbour infrastructure. They also damaged shipping and fuel facilities at a strategically important Pakistani port.
15. Did the Indian Navy control the Bay of Bengal during the war?
Indian naval forces established effective maritime control around East Pakistan and severely restricted Pakistani naval and maritime movement. This helped isolate Pakistani forces in East Pakistan from potential seaborne reinforcement and resupply.
16. How did naval operations affect Pakistani logistics?
Attacks on ships, ports and waterways disrupted the movement of fuel, ammunition, equipment and other supplies. The maritime campaign therefore contributed to the wider logistical isolation of Pakistani forces in East Pakistan.
17. What was the difference between Operation Trident and Operation Jackpot?
Operation Trident was a conventional Indian Navy missile attack against Karachi Harbour. Operation Jackpot involved Bengali naval commandos conducting covert sabotage against ships and maritime infrastructure in East Pakistan.
18. Did naval operations alone determine the outcome of the 1971 war?
No. The outcome resulted from multiple interconnected factors, including Mukti Bahini resistance, Indian Army operations, Indian Air Force operations, naval operations, Pakistan’s strategic position in East Pakistan, and wider political and diplomatic developments.
19. Why is December 4 celebrated as Indian Navy Day?
India observes Navy Day on December 4 to commemorate the Indian Navy’s successful Operation Trident attack against Karachi during the 1971 war.
20. What is the main historical lesson of the 1971 naval campaign?
The campaign demonstrates the strategic importance of maritime logistics, surprise, deception, coastal aviation, submarine warfare, and control of supply routes. The war showed that naval power can influence events on land by controlling how forces, fuel, equipment and supplies move between strategic locations.
Multiple-Choice Questions
1. Operation Trident was conducted by which country’s navy?
A. Pakistan
B. India
C. Bangladesh
D. Sri Lanka
Answer: B. India
2. On which date was Operation Trident launched?
A. December 1, 1971
B. December 3, 1971
C. December 4, 1971
D. December 16, 1971
Answer: C. December 4, 1971
3. Which Pakistani port was the main target of Operation Trident?
A. Chittagong
B. Karachi
C. Gwadar
D. Chabahar
Answer: B. Karachi
4. Which Indian naval vessel fired missiles at PNS Khaibar?
A. INS Veer
B. INS Kiltan
C. INS Nirghat
D. INS Rajput
Answer: C. INS Nirghat
5. Which type of missile was used by Indian missile boats during Operation Trident?
A. Exocet
B. Styx
C. Harpoon
D. BrahMos
Answer: B. Styx
6. Which Pakistani destroyer was sunk during Operation Trident?
A. PNS Shah Jahan
B. PNS Tippu Sultan
C. PNS Khaibar
D. PNS Badr
Answer: C. PNS Khaibar
7. Which Pakistani minesweeper was sunk during Operation Trident?
A. PNS Muhafiz
B. PNS Ghazi
C. PNS Hangor
D. PNS Tariq
Answer: A. PNS Muhafiz
8. Which Indian missile boat attacked PNS Muhafiz?
A. INS Nipat
B. INS Veer
C. INS Nirghat
D. INS Katchall
Answer: B. INS Veer
9. What was the principal objective of Operation Trident?
A. Capture Dhaka
B. Attack Karachi’s naval and maritime infrastructure
C. Capture Lahore
D. Destroy India’s eastern fleet
Answer: B. Attack Karachi’s naval and maritime infrastructure
10. What was Operation Jackpot associated with?
A. Air raids on Lahore
B. Bengali naval commando operations
C. Indian Army operations in Rajasthan
D. Pakistani submarine operations
Answer: B. Bengali naval commando operations
11. Which organization did the Bengali naval commandos fight for?
A. Pakistan Navy
B. Mukti Bahini
C. Royal Indian Navy
D. Indian Coast Guard
Answer: B. Mukti Bahini
12. What type of explosives were commonly used by naval commandos against ships?
A. Anti-tank mines
B. Limpet mines
C. Land mines
D. Depth charges
Answer: B. Limpet mines
13. Which of the following was one of the major locations targeted during Operation Jackpot?
A. Chittagong
B. Delhi
C. Mumbai
D. Lahore
Answer: A. Chittagong
14. Why were river ports particularly important in East Pakistan?
A. They were used only for tourism
B. They provided important transportation and supply routes
C. They were India’s main naval bases
D. They contained Pakistan’s largest airfields
Answer: B. They provided important transportation and supply routes
15. Which Indian aircraft carrier played an important role in the eastern theatre?
A. INS Vikramaditya
B. INS Vikrant
C. INS Viraat
D. INS Vikram
Answer: B. INS Vikrant
16. Which Pakistani submarine was lost off Visakhapatnam in 1971?
A. PNS Hangor
B. PNS Ghazi
C. PNS Saad
D. PNS Khalid
Answer: B. PNS Ghazi
17. What was one of the principal missions associated with PNS Ghazi?
A. Protect Karachi Harbour
B. Search for and threaten INS Vikrant
C. Attack Dhaka
D. Escort Pakistani merchant ships to Europe
Answer: B. Search for and threaten INS Vikrant
18. Which Indian ship is traditionally associated with the attack on PNS Ghazi?
A. INS Rajput
B. INS Nipat
C. INS Veer
D. INS Kiltan
Answer: A. INS Rajput
19. Where did PNS Ghazi sink?
A. Near Karachi
B. Near Chittagong
C. Off Visakhapatnam
D. Near Mumbai
Answer: C. Off Visakhapatnam
20. What was one major strategic effect of India’s eastern naval campaign?
A. It opened a supply route into Pakistan
B. It helped isolate Pakistani forces in East Pakistan
C. It ended the conflict immediately
D. It transferred Karachi to India
Answer: B. It helped isolate Pakistani forces in East Pakistan
21. When did Pakistani forces in East Pakistan surrender?
A. December 4, 1971
B. December 10, 1971
C. December 13, 1971
D. December 16, 1971
Answer: D. December 16, 1971
22. Why is December 4 observed as Indian Navy Day?
A. It marks the commissioning of INS Vikrant
B. It commemorates Operation Trident
C. It marks the sinking of PNS Ghazi
D. It marks the creation of the Indian Navy
Answer: B. It commemorates Operation Trident
23. Which factor was particularly important to naval guerrilla operations in East Pakistan?
A. Desert warfare
B. Riverine geography
C. Mountain warfare
D. Arctic conditions
Answer: B. Riverine geography
24. Which statement best describes the role of naval operations in the 1971 war?
A. They were completely separate from land operations
B. They helped disrupt maritime logistics and isolate Pakistani forces
C. They were limited to ceremonial activities
D. They involved only submarine warfare
Answer: B. They helped disrupt maritime logistics and isolate Pakistani forces
25. Which combination best represents the maritime strategy used during the 1971 war?
A. Missile attacks, naval aviation, submarine operations and maritime sabotage
B. Only battleship warfare
C. Only air attacks
D. Only river transportation
Answer: A. Missile attacks, naval aviation, submarine operations and maritime sabotage
Quick Answer Key
| Q. | Answer | Q. | Answer | Q. | Answer |
|---|---|---|---|---|---|
| 1 | B | 10 | B | 19 | C |
| 2 | C | 11 | B | 20 | B |
| 3 | B | 12 | B | 21 | D |
| 4 | C | 13 | A | 22 | B |
| 5 | B | 14 | B | 23 | B |
| 6 | C | 15 | B | 24 | B |
| 7 | A | 16 | B | 25 | A |
| 8 | B | 17 | B | ||
| 9 | B | 18 | A |