This is one of Amitabh Bachchan's Angry Young Man action movies. In this one, he is the illegitimate son of a big industrialist. The industrialist, when he was a young man, got a woman pregnant, but at his mother's insistence he married the boss' daughter and left his girlfriend to raise the illegitimate son in poverty. The son, named Vijay Kumar, makes a solemn vow to get justice for his mother by humbling the father who wouldn't take his responsibility as the father of her child.
Well, as they say its a pretty good movie. Bachchan gives the usual intense performance. Sanjeev Kumar plays the father in the classic style. Waheeda Rehman is the wronged mother. Later in the plot, Shashi Kapoor shows up as Shekhar, RG Gupta's legitimate son by the boss' daughter. And Hema Malini shows up as Sheetal, Shekhar's love interest.
Shashi also played Amitabh's brother in the good son-bad son drama Deewar.
Good things for ME were Hema. She was just a gorgeous screen presence back then and every smile warmed things up. In a way, Hema played herself as the confident, ambitious woman. Probably not too hard a role for her.
And Bachchan's acting. He's always the most riveting present on the screen. Prem Chopra was pretty good as the oily rival. I also liked Rakhee Gulzar as Geeta.
Not too much I didn't like about the movie, but I found some of the songs kind of disruptive to the flow of the story. They weren't badly shot or anything, they just seemed out of place.
There was some cleverness in the script. For a while, as business rivals, Gupta and Vijay play kind of a chess game. The screenplay is by Javed Akhtar and shows some intelligence.
So, I guess I can give it an 8/10.