A box-office hit deserves all the celebration it can get. Which could be why the co-stars of 'Piku', Deepika Padukone and Irrfan, can't stop having a blast.

And they aren't the only ones, joining them were a bevy of other celebrities right from Ranveer Singh who turned up in an eccentric looking outfit. He didn't shy away from showing his affection for Zoya Akhtar.