'Zulmi' is a story of Amrish Puri, who is entrusted with the responsibility of looking after Milind Gunaji, after his mentor, Dara Singh is killed by underworld don, Dalip Tahil. Milind grows up to be a spoilt brat and tries to rape a girl one day. Akshay Kumar, the girls brother swears to take revenge. Circumstances get Amrish Puri and Akshay Kumar together and Amrish Puri's daughter Twinkle Khanna falls in love with Akshay Kumar. Their marriage is fixed but Milind comes on the scene and the conflict begins. Dalip Tahil takes the advantage of the situation and declares war against Amirsh Puri.