In 1971 , Shibir 's predecessor , Islami Chattra Shangha , members of which led the formation of Al-Badr , which was involved in the 1971 killing of Bengali intellectuals ; some members of Al-Badr had been convicted and executed by International Crimes Tribunal
1971 killing of Bengali intellectuals
1971 killing of Bengali intellectuals
Bangladesh Islami Chhatra Shibir