The film focused on two friends ( Rajesh and Amitabh) and how Rajesh tries to infiltrate the trade union of his friends. Amitabh Bachchan plays a rich man's son who has a fight with a union leader and later sends his best friend, Rajesh Khanna to grow bigger than the previous union leader. Rajesh starts getting influenced by the ideals of workers which leads to the confrontation between two friends. This film concentrates on the rise of Unions with the backdrop of Mumbai's textile mills and inflation in the early '70s.
This was the second Hrishikesh film with Rajesh Khanna and Amitabh together after Anand. Diye Jalte Hai, Phool Khilte Hai, Nadiya se dariya, Dariye se sagar and Main Shayar Badnaam are the most memorable melodies, all rendered powerfully by Kishore Kumar and picturised on Rajesh Khanna.