[1] It was committed by the Shanti Bahini, the armed wing of the Parbatya Chattagram Jana Samhati Samiti on 31st of May, 1984.
[1] On May 31 1984, the Bengalis living in Bhushanchhara union of Barkal Upazila of Rangamati were targeted.
According to claims made by locals and security sources, an armed group of 125 of Shanti Bahini personnel headed Moni Swapan Dewan alias Major Rajesh surrounded the entire village late at night.
In just four hours from 4 am to 8 am, they killed 400 ethnic Bengalis, including women and children.
[2] Moni Swapan, the alleged chief perpetrator, later became a member of parliament and deputy minister for Chittagong Hill Tracts Affairs.