The Bollywood veteran admitted on his blog that he was accused of ruining a private family moment by some critics.
However, Bachchan countered: "I burn with the desire of my love and affection of my EF (extended family).
"My Blog and my Twitter are my extended family. I consider it my duty to first inform my family! You have a problem with that?"
Bachchan further explained: "I burn with the desire of my love and affection of my EF. They are my little world that feeds and expresses and holds me, embraces me with the warmth and care as that of a mother with her new born."
The actor compared the negative public reaction to that when the family chose to hide the wedding of his son to the former Miss World and described the current reaction as hypocritical.
Bachchan will next be seen in Bbuddha Hoga Tera Baap playing a grumpy man who refuses to be nicknamed "grandpa".
> Read Digital Spy's recent interview with Amitabh Bachchan
Watch a 'first look' trailer for Bbuddah Hoga Tera Baap below: