Sare mahafil mera imaan beyiman ho gaya song is from
Ab Kya Hoga (1977) and it is sung by
Asha Bhosle and
Mohammed Rafi.It stars Shatrughan Sinha, Neetu Singh and Asrani in leading roles. This song is penned by
Saawan Kumar and composed by
Usha Khanna. It is produced by Saawan Kumar Tak. This song was released on 09 Jul 1977.