Amitabh Bachchan is one of the finest artist and actor of Bollywood. Mr. Bachchan enjoys every phase of his life. Amit Ji is gracing childhood with his grandchildren Navya Naveli and Agastya. He has often posted loving pictures and captions for 'apples of his eye', his grandchildren. Amit Ji posted some of the adorable pictures of his grandchildren on his Instagram account on Monday. In which he can be seen spending quality time with Navya and Agastya Nanda. Big B has also Posted a Polaroid photo of himself. He captioned the picture as "When Navya clicks you on her Polaroid and you click yourself on your iPhone .. as we chill .. for .. Aahaa .. wouldn't you like to know ..!!" Sharing an adorable picture of Navya and Agastya, Big B wrote, ".... and then the grandchildren.. they are the best .. when did they grow up - Navya Naveli & Agastya .." The 'Brahmastra' star, along with children Abhishek Bachchan and Shweta Bachchan-Nanda and grandchildren Navya and Agastya, are currently holidaying in Russia. Amitabh Bachchan was last seen in the movie 102 Not Out. He is currently working in Karan Johar’s Brahmastra along with Alia Bhatt and Ranbir Kapoor. Sushant Singh and Sanjana Sanghi will be ‘Kizie Aur Manny’ of Bollywood Mulk trailer out: A family’s struggle to prove their love for their own nation Bollywood Shahanshah appraises Deepa Karmakar for her clinching gold medal