Asmaan se ooncha (1989)

A longstanding feud between bitter rivals yields an unexpected friendship in this tale of ambition, violence and love starring Jeetendra and Raj Babbar. Engaged in an ongoing dispute with his archenemy, Nagraj, a man named King sets out to kill the police officer who's interfered in his affairs. But through a remarkable twist of fate, King and the cop end up friends. Now, the two must face the formidable Nagraj -- who wants them both dead.