The Battle of Dhalai was a battle in the Bangladesh Liberation War. It was an Indian attack from Tripura into East Pakistan to stop Pakistani cross-border shelling. The Bangladesh Liberation War (two other names are also used occasionally) refers to an armed conflict between West Pakistan (now Pakistan) and East Pakistan (now Bangladesh) that lasted for roughly nine months, from 26 March until 16 December 1971. ... Wikimedia Commons has media related to: Tripura Tripura (তà§à¦°à¦¿à¦ªà§à¦°à¦¾) is a state in North-east India. ... East Pakistan was a former province of Pakistan which existed between 1955 and 1971. ...