this is one of best movie by amitabh. story & screenplay really different & outstanding. somewhere you know that, what will be the next turn of the story but you don't know that how it will be happen & what going to happen in next seen. everybody perform very well. casting was perfect. PRAN has done excellent job after DON. even K N Singh was such a long gap after i have seen on film screen.AMJAD KHAN & KADAR KHAN were also nice. TINU ANAND direction was fabulous. he didn't lose the grip from the film. above all R D BURMAN has given wonderful music not only in songs but also background music. each song has her own space & they push the story. particularly "KAUN KISI KO MAR SAK" & "TUM SAATH HO JAB AAPNE"... it's out & out entertain movie. in other word movie of AMITABH'S ERA....