A cikin 1947, bayan rabuwar Indiya, Gabashin Bengal ya zama wani yanki na Mulkin Pakistan .Duk da ya ƙunshi mafi yawan mutane miliyan 44, mazauna Gabashin Bengal masu magana da harshen Bengali sun sami kansu a cikin gwamnatin Pakistan, ma'aikatan gwamnati, da sojoji, waɗanda reshen yamma suka mamaye.^[1] Wani muhimmin lamari ya faru a cikin 1947 a taron kolin ilimi na kasa a Karachi, inda wani kuduri ya ba da shawarar Urdu a matsayin yaren jihar kawai, wanda ya haifar da adawa kai tsaye a Gabashin Bengal.Abul Kashem ya jagoranta, dalibai a Dhaka sun bukaci a amince da Bengali a matsayin harshen hukuma da kuma hanyar ilimi.^[2] Duk da waɗannan zanga-zangar, Hukumar Kula da Jama'a ta Pakistan ta cire Bengali daga yin amfani da ita a hukumance, wanda ke ƙara nuna fushin jama'a.^[3]Wannan ya haifar da gagarumar zanga-zanga, musamman a ranar 21 ga Fabrairun 1952, lokacin da ɗalibai a Dhaka suka ki amincewa da dokar hana tarukan jama'a.‘Yan sandan sun mayar da martani da hayaki mai sa hawaye da harbin bindiga wanda ya yi sanadiyar mutuwar dalibai da dama.^[1] Rikicin ya rikide zuwa rikice-rikice a cikin birni, tare da yajin aiki da rufewa.Duk da rokon da ‘yan majalisar dokokin yankin suka yi, babban ministan, Nurul Amin, ya ki ya magance matsalar yadda ya kamata.Wadannan al'amura sun haifar da sauye-sauyen tsarin mulki.Bengali ya sami karbuwa a matsayin yaren hukuma tare da Urdu a cikin 1954, wanda aka tsara shi a cikin Tsarin Mulki na 1956.Sai dai daga baya gwamnatin soja karkashin Ayub Khan ta yi yunkurin sake kafa Urdu a matsayin harshen kasa daya tilo.^[4]Harshen yare ya kasance muhimmin al'amari da ya kai ga Yaƙin 'Yancin Bangladesh.Ƙaunar mulkin soja ga yammacin Pakistan, tare da rarrabuwar kawuna na tattalin arziki da siyasa, ya haifar da ɓacin rai a Gabashin Pakistan.Kiran da kungiyar Awami ta yi na samar da ‘yancin cin gashin kai na larduna da kuma sauya sunan yankin Gabashin Pakistan zuwa Bangaladesh shine jigon wannan tashin hankalin, wanda daga karshe ya kai ga samun ‘yancin kai na Bangladesh.