An adaptation of the popular novel 'The 3 Mistakes of My Life' by author Chetan Bhagat, 'Kai Po Che!' tells the story of three friends, Ishaan (Sushant), Omi (Amit) and Govind (Rajkumar), who want to start their own sports shop and sports academy. It tracks their deep friendship and innocence tarnished by religious politics and communal hatred, which results in their fallout, and an eventual death.
The film released in February 2013.
"Magical experience it was... Three years of 'Kai Po Che!' Abhishek Kapoor, Amit Sadh and Rajkummar Rao," Sushant posted on Twitter on Monday alongside a photograph of the trio from the film.
Rajkummar tweeted: "Such wonderful memories.. Three years of 'Kai Po Che!' Thank you my brothers Abhishek Kapoor, Sushant Singh Rajput and Amit Sadh".
Amit also took to the micro-blogging site to "thank" the whole team.
"Thank you everyone," he wrote.
Apart from them, the film also starred actress Amrita Puri.