"Many morphed pictures of the 'little one' with her mother in hospital doing the rounds on the net... all fake!!" -- Amitabh posted on his Twitter page.
"To be my daughter in her mother's arms. Full points for creativity to the people who made them. Spent the morning with the girls and showing them some rather entertaining photos morphed by some very talented people of who is supposed..." Abhishek wrote with sarcasm.
Aishwarya gave birth to her first child Wednesday morning at a private hospital in Mumbai. Abhishek announced the news through the micro-blogging site.
The electronic media gave only limited footage to the news of Ash's delivery, following a reported 10-point directive from the Broadcast Editor's Association (BEA) warning news channels against excessive coverage on TV of her childbirth.
Thanking the media, the Bachchan senior tweeted: "And once again a word of kindness to the electronic media for their non interference and dignified distance... thank you!!
"A word of appreciation too, to the print media for highlighting a few salient points... our joy in welcoming the girl child... and emphasising the commendable desire of Aishwarya in having a normal delivery without any epidural or pain killers. The often coined phrase 'too posh to push' was put to rest in her case... she was determined to do it the way she felt was correct!" he added.
The 69-year-old third-time grandfather is already receiving suggestion for the baby's name, though Abhishek has chosen to nickname her 'Beti B'.
"More time spent with the 'little one'... each and every movement sinking deep into our memory cells... to narrate to them when older! Thank you all for sending in suggestions for names for the baby... some of them really good... will run it by the parents!" he wrote.