Megastar Amitabh Bachchan is revisiting his childhood days, as he cycles around the streets of Kolkata while shooting for his upcoming film ' Piku '.

Before beginning the venture, Big B took social networking site Facebook to share his excitement by writing "In 'PIKU land'...!! Too many memories flashing by as the drive from the airport ends .. but so much more to come in the days ahead. Kolkata shall always hold a special place and space within...'a city of joy that energises with the intellect and passion !!"

Sr. Bachchan was seen cycling around the majestic gothic-styled Writer's building on the B B D Bagh area. He was in his ' Piku ' avatar adorning kurta, navy blue coloured sleeveless jacket with sneakers and a hat.

Directed by Shoojit Sircar , ' Piku ' will explore the relationship of a father and daughter, played by Big B and Deepika Padukone , respectively.