Roop Tera Mastana (1972) , a 1972 bollywood/romance movie released on 11/4/1972 starring Jeetendra, Mumtaz, produced by M.M. Malhotra. Princess Usha's assistant Ajit kills her and forces Kiran, her lookalike, to pose as the princess to get hold of the wealth. Kiran falls in love with a prince, not realising her identity is temporary..
