The Bachchan family is basking in joy and the reason for their happiness is that the family is going to welcome a new addition to their Khandan. Yes, Aishwarya Rai Bachchan and Abhishek Bachchan are expecting their first child. This good news was declared by soon to become grandfather, Big B. Amitabh Bachchan tweets, "I am going to be a grandfather soon. Aishwarya is expecting. Thrilled and happy". The moment Big B shared this news on his microblogging site thousands of congratulatory messages showered in a span of few minutes from his fans and people from within the film fraternity.