Fifty-five years ago, Pakistan launched “Operation Searchlight”- a brutal crackdown in East Pakistan to suppress political dissent. The targets included students, intellectuals, political activists, and Hindu minorities. Widespread killings, sexual violence, and destruction followed. This created one of the worst humanitarian crises of the 20th Century. Bangladesh’s official figure places 3 million deaths in 1971, including “Operation Searchlight.” It was ordered by General Yahya Khan, President and Chief Martial Law Administrator of Pakistan. Lt Gen Tikka Khan, Governor and Martial Law Administrator of East Pakistan, executed it, who was known as the “Butcher of Bengal.” Later, Pakistan started the “crush India campaign”. 

Reports of mass killings and atrocities deeply alarmed the Indian leadership. About 10 million refugees came to India. India framed the crisis as both a moral responsibility and a humanitarian emergency, not merely a political dispute. The then PM Indira Gandhi told Dom Moraes, her biographer, that it was a purely humanitarian dimension that pushed her to intervene in East Pakistan. 

However, there were strategic and security concerns behind India’s decision to become involved in the imbroglio. Instability in East Pakistan directly affected India’s eastern borders. The possibility of a hostile military regime next door, coupled with chaos and insurgency, posed serious security risks. 

India provided training, shelter and other support to the Mukti Bahini (Bangladeshi resistance fighters). The liberation struggle gradually evolved from an internal conflict into the Indo-Pak War. The Mukti Bahini was led by Col (Retd) M A G Osmani. He worked closely with Indian military planners. Politically, it was under Tajuddin Ahmad, PM of the Provisional Govt of Bangladesh (Govt-in-Exile), based in Mujib Nagar (India). 

India soon began extensive diplomatic preparations. It contacted several foreign countries and explained its concerns. The US openly supported Pakistan, mainly because Pakistan was a Cold War ally and a member of US-led military pacts (SEATO, CENTO). Besides, Pakistan was considered a bridge between the US and China. The Nixon administration ignored reports of human rights violations in East Pakistan. Later, the US sent the USS Enterprise (7th Fleet) into the Bay of Bengal as a show of force against India. 

This US approach strengthened India’s resolve to rely on the USSR for security, which strongly supported India. It vetoed UN Security Council resolutions that called for a ceasefire favourable to Pakistan. It provided military equipment and diplomatic backing to India. The Soviet naval movement countered the US 7th Fleet’s threat. The USSR’s support gave India confidence to pursue military action, leading to Bangladesh’s liberation. 

China, which was a close ally of Pakistan, opposed India. However, China did not intervene militarily due to the Soviet military presence near the Sino-Soviet border, logistical and strategic constraints. China supported Pakistan only diplomatically and criticised India at the UN. 

India used the refugee crisis to highlight Pakistan’s deplorable human rights violations and barbaric atrocities of the Pak soldiers on global platforms, including the UN. Although the international response was limited, it helped India justify intervention as a necessary response to an international humanitarian disaster. 

India’s military strategy was pragmatic and prudent. It did not go in for premature military action, despite public and political pressure, allowing full military preparation, completion of the monsoon season, and exhaustion of all diplomatic options. The armed forces were given clear political objectives: the liberation of East Pakistan (Bangladesh) and avoidance of long-term occupation or escalation into a wider war. There was a strong civil-military coordination, and political leadership and military planning worked in sync. The war was fought with limited aims but decisive execution. 

The Indian Armed Forces played a highly coordinated, professional, and innovative role, resulting in one of the shortest decisive wars in modern history (13 days) under General Manekshaw. The Indian Army executed a multi-directional, fast-moving campaign in East Pakistan. It bypassed heavily defended cities instead of engaging in attritional warfare. It worked closely with the Mukti Bahini for intelligence and local support. 

East Pakistan was attacked from three sides-east, north and west. India’s three Corps advanced in East Pakistan towards Dhaka: 4 Corps under Lt Gen Sagat Singh from the east; 2 Corps under Lt Gen TN Raina from the north; and 33 Corps under Lt Gen ML Thapan from the west. 4 Corps captured Sylhet, Comila and advanced towards Dhaka. 2 Corps secured Jessore and Khulna and prevented the Pak forces from withdrawing toward Dhaka. 33 Corps moved toward Rangpur and Bogra and prevented the Pakistani troops from moving toward Dhaka. 

The Indian Air Force established air superiority within days. It neutralised Pakistani air bases and communication lines and provided close air support to advancing ground forces. 

The Indian Navy imposed a naval blockade of East Pakistan. It destroyed the Ghazi submarine. Its successful operations on Pakistan’s western coast (e.g., Operation Trident and Python) prevented reinforcements and supplies from reaching Pakistani forces. 

Pakistan’s failure was strategic, not just tactical. Pakistan assumed that India wouldn’t fully commit to the East, and the Western gains could be traded for East Pakistan. This assumption collapsed in 13 days. There was poor coordination between the Pakistan Navy, Air Force and Army. It was fighting with a defensive mindset. And after its collapse in the East, the Western Front did not matter. 

The 2nd Para was the first unit to entre Dhaka. On the 16th December 1971, Pakistani Lt Gen AAK Niazi surrendered to Indian Lt Gen Jagjit Singh Aurora. Over 93,000 Pakistani soldiers became prisoners of war. 

The war not only created Bangladesh but also established India as a dominant regional power, enhanced the credibility of Indian military professionalism, and strengthened India’s diplomatic standing globally. India played a pivotal role in the Bangladesh’s liberation.

The repatriation of PoWs and the return of territorial gains are often criticised for missing the opportunity to settle the Kashmir issue permanently. However, India prioritised legitimacy, peace (hoping that it would reduce the probability of future wars), emergence as a responsible nation and long-term diplomatic positioning in the global structure. Overall, it was a wise decision given the prevailing circumstances. 

(The author was involved in preparing the Official Account of the 1971 War.)

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