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India Pakistan 1971 War: Reasons, Outcomes & Role of Mukti Bahini

Updated on October 29, 2026Author:NEXT IAS Contributors

The India-Pakistan War of 1971 was a 13 days conflict that ended in decisive Indian victory with the formation of a new country Bangladesh. On the night of 25th March 1971, Pakistan initiated Operation Searchlight to destroy Bengali nationalists and their movement. On the other side, India provided their support to the Bengali Liberation Force ‘Mukti Bahini’.

On 3rd December 1971, Pakistan launched airstrikes on 8 Indian Air Force stations which formally began the India-Pakistan War of 1971. India fought on both the Eastern and Western fronts under the leadership of Army Chief General Sam Manekshaw.

India gave a befitting reply to Pakistan and utilised the ‘Blitzkrieg Strategy’. It is a military technique which deploys speed, surprise, and concentrated application of force using Army Infantry, Battle Tanks, and Air Support to quickly defeat the enemy. The Indian Navy blocked the ports of Pakistan in the eastern front and launched Operation Trident to destroy Karachi port and fleet on the Western front. The Indian Army and Mukti Bahini in a very less amount of time surrounded the entire Dhaka.

As a result, the 1971 war came to an end when the Eastern Command of Pakistan surrendered in Dhaka on 16 December 1971. About 93,000 army personnel of Pakistan and civilians became prisoners of War (PoW) and Bangladesh became an independent nation. India commemorates the victory as Vijay Diwas on 16th December every year.

Historical Background of the 1971 India Pakistan War

The creation of Pakistan in 1947 led to the formation of East and West Pakistan which is separated from each other by about 1,600 km of Indian territory.
The larger population and political control of East Pakistan was overshadowed by the West.
The issue of imposition of Urdu languages over Bengali and that of provincial autonomy took concrete form through the 6 point programme.
During the general elections of 1970, the Awami League received an absolute majority in the National Assembly. However, the government of West Pakistan did not hand over power to East Pakistan.
On 25th March, 1971, Operation Searchlight was carried out by the Pakistan Army.
They started to repress the Bengali political workers and students, which led to the Bangladesh Liberation War.

Course of Indo-Pak 1971 War

The timeline of important events of the India-Pakistan war of 1971 are given in the table below.

S.No.	Date / Period	Event
1	7 Dec 1970	General elections in Pakistan Awami League won by majority votes
2	Jan–Mar 1971	Political deadlock over transfer of power Postponement of National Assembly session fuels outrage.
3	25 Mar 1971	Operation Searchlight Operation Searchlight Bangladesh Liberation War begins.
4	Mar–Nov 1971	Mukti Bahini guerrilla operations Many refugees came to India
5	21 Nov 1971	India began operations in support of Mukti Bahini along the border.
6	3 Dec 1971	Pakistan launches airstrikes on Indian airfields in the West India declared a state of war.
7	3–16 Dec 1971	War began on Eastern and Western fronts Indian Forces moved in East Pakistan towards Dhaka.
8	16 Dec 1971	Pakistan Eastern Command surrendered in Dhaka which finally gave birth to an independent Bangladesh.
9	Post‑Dec 1971	Ceasefire on Western front Issue of about 90,000 Pakistan Prisoners of Wars

Why did Bangladesh Separate from Pakistan?

Bangladesh became independent from Pakistan in 1971 owing to several differences existing between them for quite some time.
Even though East Pakistan had more people, the political and military power remained in the hands of West Pakistan. Therefore, they were under-represented for many years.
Economically, the export revenues of the country, particularly that of jute, came from East Pakistan, yet they used to receive lesser developmental investments.
The imposition of Urdu as the only national language in 1948 led to the Language Movement in 1952 because of the feeling of marginalization.
The rejection of the 1970 election results which was won by Awami League in favor of West Pakistan caused a military crackdown in March 1971.
It was followed by a war of liberation resulting in independence in December 1971.

The Role of Mukti Bahini

The Mukti Bahini was the Liberation Force of Bangladesh. They played an important role in the 1971 war or Bangladesh Liberation War.
Mukti Bahini organized their resistance against the Pakistan Army after Operation Searchlight.
They slowly gained political guidance from the provisional government of Bangladesh and were supported by India.
Mukti Bahini used the tactics of guerrilla warfare. As a result, their constant pressure eroded the control of Pakistan over large rural areas.
Mukti Bahini also fought alongside Indian forces in their own liberation.

Outcome of the India Pakistan 1971 War

The 1971 war ended with the victory of India and the emergence of a new nation Bangladesh.
The Eastern Command of Pakistan surrendered in Dhaka on 16th December 1971.
It brought an end to the Pakistan rule in the East Pakistan region. More than 90,000 Pakistan troops and civilians were made the Prisoners of Wars.
India gained strategic significance and increased regional influence.
As a result, Pakistan lost the eastern province and the new country Bangladesh was formed.

FAQs about 1971 War

What was the main reason behind the 1971 war?

The political repression in East Pakistan, lack of power transfer after the 1970 elections, and the military crackdown resulting in the Bangladesh Liberation War were the reasons behind the 1971 war.

What was the role of Mukti Bahini in the 1971 war?

Mukti Bahini was responsible for fighting against Pakistan in the East Pakistan region. They weakened them and helped in Indian operations in the process of liberating Bangladesh.