The 72-year-old actor stars alongside Irrfan and Deepika Padukone in the comedy drama.
"Confetti and cheers.. Applause and thank you pictures.. crew photo opportunities and some emotions!! 'Piku' shoot for me is done," Bachchan posted on twitter.
Big B's co-star Irrfan seemed emotional about the completion of the shoot.
"Shoot had been like a beautiful song wish it would have lasted longer," he posted.