Kolkata, Nov 18 (IANS): Bollywood screen icon Amitabh Bachchan, who is also the United Nations ambassador for the Girl Child, is now "happy" to be a part of a unique cyber venture that aims to create a holistic online environment for children.

"Should kids or should kids not? Isn't there a bigger responsibility of creating a holistic online environment? I'm happy to be a part of a unique initiative for kids," Big B posted on social networking site Facebook Tuesday referring to worldoo.com.

The internet project has roped in the star to help create a responsible internet for children as they take their first step online.

The 72-year-old actor is in the city to shoot for Shoojit Sircar's "Piku".

With the filming wrapped up Tuesday, Sircar expressed his gratitude to the residents of Kolkata, the West Bengal government and the Kolkata Police.

"Grateful to the CM of West Bengal, Mamata di, for her support and warmth this wld not have been possible without her blessings.

"Grateful to the Kolkata police for their support and administration in enabling a successful shoot and to the people of Kolkata, for their love, for making us feel at home...from PIKU team...Dhonobaad!!, Sircar tweeted Tuesday.