The “Shahenshah” star felt nostalgic and happy as his daughter Shweta Nanda’s son turned a teenager on Saturday.

“Agastya's birthday. Enters his 'teen’. Here to wish him,” Amitabh posted on Saturday night on srbachchan.tumblr.com.

While his grandson was covered in a hood, Amitabh was spotted in casuals with a jacket on.

On Saturday early morning, he had posted: "He (Agastya) was just born the other day and we were all rushing from different parts of the country to the Breach Candy Hospital for the delivery.”

 (Agencies)

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