"Confetti and cheers ... applause and thank you pictures... crew photo opps and some emotions!! 'PIKU' shoot for me is done!," Amitabh tweeted Friday.
Irrfan took to Twitter and shared a photograph in which he is seen hugging Big B and giving him a kiss on the cheek.
"@SrBachchan's last day of the shoot for #PIKU# couldn't resist, I had to kiss him," Irrfan shared.
The movie, which also stars Deepika Padukone, will hit the screens April 30, 2015.