Trivia

Although Sanjeev Kumar played the father, he was actually several months younger than Shashi Kapoor, who played his son.

Mithun Chakraborthy use to frequent a famous tailor shop in Mumbai called "Playboy". Once in 1976, Mithun had arrived at the shop and saw Salim Khan. Salim noticed Mithun standing around and kept observing him. Salim was taken back by Mithun's face. Salim finally approached Mithun and said "Bhai tumhare chehre mein koi kashish hain. Aap filmo mein kyon nahin try karte?". Mithun knew exactly who Salim Khan was and could not believe his ears when Salim Khan paid him that compliment. Mithun told Salim Khan he just graduated from Pune's FTII acting school and was looking for work. Salim Khan gave him Yash Chopra'a address and told him they were casting for Trishul. The needed a boy for the role opposite Poonam Dhillon. Mithun thanked Salim Khan for the help and set out to meet Yash Chopra. Unfortunately Chopra had already signed Sachin for the role.

Rishi Kapoor was offered Sachin's role but he refused which shocked Salim Javed who told him that it will ruin his career if he refuses their film as there were a big name as writers This Rishi mentioned in his autobiography

'Dilip Kumar' was originally offered the role of R.K Gupta but turned it down.

Amitabh Bachchan was nominated for Filmfare best actor award but he lost out to himself for Don 1978.