HistoryData
war1971

Battle of the Bangladesh Liberation War

August 15, 1971

Operation Jackpot was a coordinated Mukti Bahini sabotage campaign that disrupted Pakistani naval and military supply lines during the 1971 Bangladesh Liberation War.

Quick Facts

Year
1971
Category
war

Key Facts

Operation start date
15 August 1971
Training supply operation began
15 May 1971
Cities targeted
Chittagong, Chandpur, Mongla, Narayanganj
Third operation period
21 November – 16 December 1971
Indian corps commander
Lt. Gen. Sagat Singh, IV Corps
Defector origin submarine
PNS Mangro (S133), Toulon, France

By the Numbers

15
Operation start date
15
Training supply operation began
21
Third operation period
133
Defector origin submarine

Location

Map of BangladeshMap of BangladeshBangladesh

Cause → Event → Consequence

Cause

After the Pakistani Army drove Bengali armed forces across the Indian border during Operation Searchlight, India began a supply and training program for the Mukti Bahini from 15 May 1971. The goal was to build a trained insurgent force capable of attacking Pakistani military assets, sabotaging economic infrastructure, and undermining Pakistani morale and logistics.

Event

On the night of 15 August 1971, Mukti Bahini naval commandos launched coordinated sabotage attacks on Pakistani forces in Chittagong, Chandpur, Mongla, and Narayanganj. The raids were led by Bengali submariners who had defected from PNS Mangro. A third phase of the operation, planned by Lt. Gen. Sagat Singh, involved ground combat in Sylhet, Comilla, and Chittagong from 21 November to 16 December 1971.

Consequence

The sabotage operations disrupted Pakistani naval and supply infrastructure across East Pakistan, contributing to the demoralization of Pakistani forces. The broader campaign of which Operation Jackpot was part culminated in the Pakistani military's surrender and the creation of independent Bangladesh in December 1971.

Belligerents & Mobilization Analysis

Side A

2 belligerents

Mukti Bahini (Bangladesh forces)Indian Army (IV Corps)
Key Commanders

Lt. Gen. Sagat Singh.

Side B

3 belligerents

Pakistan ArmyPakistan Navy / Pakistan Marines / Pakistan Navy SEAL TeamsEast Pakistan Security Forces
Outcome
Successful Mukti Bahini sabotage of Pakistani naval and supply assets; part of the broader campaign ending in Pakistani surrender on 16 December 1971.

Timeline Context

Timeline around 197119711968196919701972197319741971 treaty between Italy and Tunisia1971 European Athletics Championships — 1971 edition of the European Athletics Championships1971 CONCACAF Championship — 1971 edition of the CONCACAF Championship association football competition1971 Formula One season — sports seasonEurovision Song Contest 1971 — 16th edition of the Eurovision Song Contest1971–72 UEFA Cup — inaugural season of Europe's secondary club football tournament organised by UEFA1971–72 European Cup — 17th season of the UEFA club football tournament1971 World Women's Handball Championship — 1971 edition of the World Women's Handball Championshipoperation-jackpot-1971