Ku qor sii wadida cutubkan - Isla markiiba kadib dagaalkii xornimada Bangladesh ee 1971
, kuwa Bihari ee wali ku noolaa Bangladesh waxaa lagu eedeeyay inay yihiin "pro-Pakistani" "khaa'iniin" reer Bengalis ah, waxaana lagu qiyaasay 1,000 ilaa 150,000 oo Bihari ah oo ay dileen kooxaha reer Bengal ee waxa lagu tilmaamay "Dilalka Qabiilka". Mukti Bahini waxaa lagu eedeeyay dambiyo ka dhan ah dadka laga tirada badan yahay ee Biharis ee Dowladda Pakistan. Sida laga soo xigtay warqad cad oo ay soo saartay dowladda Pakistan, Ururka Awami League wuxuu dilay 30,000 oo Bihari iyo reer Galbeedka Pakistan. Burcadda reer Bengal waxay badanaa hubaysnaayeen, mararka qaarkoodna waxay lahaayeen mindiyo iyo ulo bamboo ah. 300 oo Bihari ayaa lagu dilay koox Bengali ah oo ku sugneyd Chittagong. Xasuuqa waxaa u adeegsaday ciidanka Pakistan si ay u caddeeyaan inay bilaabeen Hawlgalka Searchlight ee ka dhanka ah dhaqdhaqaaqa qaranimada Bengali. Bihari waxaa lagu xasuuqay Jessore, Panchabibi iyo Khulna (halkaas oo, bishii Maarso 1972, 300 ilaa 1,000 Bihari la dilay oo meydadkooda lagu tuuray webi u dhow). Ka dib markii ay rabshado ka dhex abuureen dadka reer Bengal, Biharis waxay noqdeen bartilmaameedka aargudasho. Mashruuca Minorities at Risk wuxuu tirada dadka Biharis ee lagu dilay dagaalka ku qiyaasay 1,000; si kastaba ha noqotee, R.J. Rummel wuxuu soo xigtay tirada "malaha" ee 150,000.