Aishwarya Rai Bachchan celebrated her late father Krishnaraj Rai’s birthday on Tuesday by visiting the NGO, Smile Foundation. She was accompanied by her daughter Aaradhya Bachchan and mother Vrinda Rai. The NGO, Smile Train provides corrective surgery for children with cleft lips. Aishwarya Rai has been associated with the NGO for nearly a decade.