"Dad! I hold the 9th Bachchan in my hands…this family that you started…!! Amitabh, Ajitabh, Shweta, Nilima, Namrata, Abhishek, Naina, Bhim and now… this beauty, unnamed so far…," Amitabh wrote on his blog bigb.bigadda.com.
"I hope you and maa look upon us from above and bless us and your latest addition. To carry forward what then may have seemed a somewhat limited expectation. The tradition continues and may it prosper by your love and your ‘aashirvaad’ (blessings)," he added.
The 69-year-old, who was keenly awaiting the arrival of his grandchild, also described the feeling as he held the newborn in his hand, calling it a "delicate moment".
"The soft innocence of nature rests in my arms, oblivious of what else happens around her. Occasionally she opens her large and what looks now to be eyes of the lighter hue, which those that have dealt with similar, know shall change with time," he said.
"Often the gentlest of smiles quiver across her pouted upper lip, the shut eyes bringing expression through the brows and the settling down to that dream she must dream. I stare at her in silence. She reciprocates in similar vein. It is too delicate a moment," he added.
Aishwarya Rai gave birth to her first child with Abhishek Bachchan Wednesday morning. The duo got married 2007.
"It has been a tiring day for all, especially the mother, who has shown exceptional strength and courage. It has been a day of great joy and combined happiness. It has been a day of immense emotion. Tears of joy have erupted among all that were from family and about Aishwarya all along."