"I think it ('Humshakals') is by far the funniest film I have done," Riteish said here at Vashu Bhagnani's party to celebrate the producer's 25 films in Hindi filmdom.
"Humshakals" is being directed by Sajid Khan and will see Riteish in a triple role.
"This is the first time a film has its lead characters in triple roles. A lot of confusion is there in the film," said the actor, who was seen last year in adult comedy "Grand Masti".
Besides Riteish, actors Saif Ali Khan and Ram Kapoor will also be seen in triple roles in "Humshakals", produced by Bhagnani. Slated to release June 20, it features Bipasha Basu, Tammannah Bhatia and Esha Gupta as the female leads.