Rubuta ci gaba don wannan sakin layi - A cikin 1966, Zahir Raihan yana neman wani don taka rawar gani a sabon fim dinsa "Behula". Ya zabi Razzak wanda a lokacin yake aiki a matsayin daya daga cikin mataimakansa. Razzak ya ci gaba da yin fina-finai ciki har da "Abirbhab", "Moynamoti", "Taka Ana Pai", "Dorpochurno" da "Jibon Theke Neya" (1970). Bayan Yakin 'Yanci na 1971
ya ci gaba da aiki a kan fina-finai "Manusher Mon", "Ora Egaro Jon" da "Osru Diye Lekha".