Almost all the actors played cops character at least once in their film character. I think except Sashi Kapoor, no other Kapoor acted as a cop. Vinod Khanna and Vinod Mehra made excellent cops. The even green cop of Indian cinema has been Iftekar.
No mention of Jagdish Raj Khurana, the guinness record holder of the most type-cast actor. He played a cop in 144 films. Also Iftekhar saab, the evergreen cop.