Surakksha (1979) , a 1979 bollywood/thriller movie released on 6/22/1979 starring Mithun Chakravorty, Ranjeeta, produced by B. Subaash, Raveekant Nagaich. An undercover CBI agent tries to solve the mystery of the death of a junior colleague who left behind a letter with mysterious initials on it. The soundtrack features songs like Maine Pyar Kiya, Tum Jo Bhi Ho, Mausam Hai, Ye Duniya Hai Usi Ki, Gun Master, Dil Tha Akela sung by Kishore Kumar.
