Kamina is officially being marketed as a remake of Johnny Gaddaar. However, to remake a thriller like Johnny Gaddaar, which was a hit, requires a lot more than just the story alone - for instance, a lead actor who can act (if not a Neil Nithin Mukesh, we wouldn't mind a Johnny Lever, at least). Kamina definitely suffers from a lack of a solid lead.
Further, given that this is a copy of a noir film, it does not have the crucial element of mystery that you expect. In his hurry to make Kamina a slick film, its director, Lakshmikantha Chenna, has actually made it quite frivolous.