Cika wannan jumla:
An kafa sansanin sojojin Pakistan mai karfi a Birishiri a yankin mishan na Durgapur karkashin jagorancin Major Sultan na sojojin Pakistan masu cin zarafi. Da yake zaune a nan, sojojin Pakistan, tare da taimakon sanannun dillalan Bengali, al-badrs da razakars, sun mallaki Durgapur Sadar, yankunan kan iyaka na Kalmakanda, Lengura, Nazirpur da Vijaypur a Durgapur. A daidai wannan lokacin, an kashe mutane masu son 'yanci a cikin gidan yankan Birishiri a cikin duhu na dare.