Ash, Abhishek's Chillar Party

Aishwarya and Abhishek Bachchan celebrated Children's Day with underprivileged children at an event organised by the NGO Magic Bus in Mumbai.

Ash and Abhi will be responsible for the education and other needs of four children from the organization. They donated in the name of their daughter Aaradhya, who turns a year old on November 16, 2012.

Ash and Abhishek play a ball game with the children.

Pass the ball, Ash.

Abhishek waits for his turn.

Aishwarya passes the ball to one of her little friends.

Chak de! Abhishek does bhangra with the children.

Ash won't be left out.

Showing them how it's done.

. Ash seems exhausted after all the fun and games.

Amitabh Bachchan tweeted: "Abhishek and Aishwarya just back from 'Magic Bus', a concept that looks after under privileged children .. donated to look after 4 !"

At the event, Ash and Abhishek also revealed that their daughter Aaradhya's first birthday will be a private affair. "Time just flies and now she (Aaradhya) will turn one year old. For Aaradhya's first Diwali, we had both friends and family at our place but for her first birthday, we plan to keep it a private and family affair. It will be with family and my parents," Aishwarya Rai Bachchan told reporters.