Original sentence: Along with like minded but smaller groups called Al-Badr and Al-Shams killed the best intellectuals of the then East Pakistan, which was to emerge as present day Bangladesh.It was composed of mostly Bengali collaborators and Bihari migrants to the former East Pakistan (now Bangladesh).The word literally means "volunteer", though in Bangladesh the word carries the connotation of "collaborator", indicating Bengali people who associated themselves with the Pakistani Army, and who carried out atrocities against Bengali civilians
Edited sentence: Before the end of the war, the Razakars, along with like minded but smaller groups called Al-Badr and Al-Shams killed the best intellectuals of the then East Pakistan, which was to emerge as present day Bangladesh.It was composed of mostly Bengali collaborators and Urdu-speaking migrants to erstwhile East Pakistan (now Bangladesh).The word literally means "volunteer", more commonly referred as "collaborator" indicating Bengali people who associated themselves with the Pakistani army in committing one of the worst genocides in the History of humanity during the Liberation War of Bangladesh in 1971.Within a period of nearly nine months, extending from March 26, 1971 to December 16, 1971, the Pakistan army and militia along with the Razakars allegedly killed 3 million people and raped 300,000 women