Diya Aur Toofan is a 1995 Hindi language Indian feature film directed by K. Bapaiah, starring Mithun Chakraborty, Madhoo, Suresh Oberoi, Mohnish Bahl and Kader Khan. This film, is a remake of 1979 Kannada language movie, Seetharamu.
Gajendra Singh is a very wealthy contractor who, with his partner Madanlal, sells government provided building materials into the black market in exchange for weak ones. A civil engineer and his supervisor find out and upon their meeting are subsequently murdered by Gajendra. While Dr. Vijay is unable to treat the two workers, he gets a letter informing himself that his friend Amar, a gold medalist engineer, is the replacement engineer for the crooked contractors. Amar, just like his predecessors, is very honest and wont do with what his bosses tell him to. After an attempt to bribe Amar, the contractors get beaten up and Amar threatens to expose them. Joginder, Gajendras son, is a rogue who sets his eyes on Asha, Amars eventual wifetobe. On their wedding night, Gajendra, Madanlal, and Joginder all stab Amar, and Asha, when finding out, goes crazy. During a frenzied visit to the temple one night, she slips and falls down the stone steps leading to permanent brain damage. Vijay then transplants Amars brain into Ashas body and Asha eventually kills the trio one by one. Before she hangs Gajendra, she is shot by the police, and in a dying soliloquy, claims that she will be with Amar for eternity.
Source: Wikipedia