Loved the movie. It is a must watch. The detailing for a film set in the 1970's is amazing. Everything, right from the dressing style to the hairstyles, to the gadgets, to the vehicles... It reflects the era in which the film is set.
John Abraham, Jackie Shroff, Sikander Kher, Anil George... All have done a wonderful job. The art direction is awesome and so is the direction.
Just felt that Mouni Roy's character was not developed well enough. The romantic angle did not need to be there.
Other than that, the film is fantastic. I would easily rate it 4/5.