Indian troops, partly aided by Mukti Bahini (Bengali guerrillas), defeat the Pakistan army in the Battle of Garibpur.

The Mukti Bahini, initially called the Mukti Fauj, also known as the Bangladesh Forces, was a big tent armed guerrilla resistance movement consisting of the Bangladeshi military personnel, paramilitary personnel and civilians during the Bangladesh War of Independence that transformed East Pakistan into Bangladesh in 1971.

Bengal is a historical geographical, ethnolinguistic and cultural term referring to a region in the eastern part of the Indian subcontinent at the apex of the Bay of Bengal. The region of Bengal proper is divided between the modern-day sovereign nation of Bangladesh and the Indian states of West Bengal, and Karimganj district of Assam.

Guerrilla warfare is a type of unconventional warfare in which small groups of irregular military, such as rebels, partisans, paramilitary personnel or armed civilians, which may include recruited children, use ambushes, sabotage, terrorism, raids, petty warfare or hit-and-run tactics in a rebellion, in a violent conflict, in a war or in a civil war to fight against regular military, police or rival insurgent forces.

The Battle of Garibpur was fought between the Indian forces and Pakistani forces for the control of the village of Garibpur, now in Bangladesh. On 20 November 1971, Indian troops of the 14th Battalion of the Punjab Regiment with 14 supporting PT-76 tanks from the 45 Cavalry moved in to capture the areas around Garibpur in Pakistani territory. The battle started by Pakistani troops counterattacking the next day to recapture Garibpur.