Aishwarya Rai Bachchan took to Instagram on Friday to wish Amitabh Bachchan on the occasion of his birthday. Sharing a throwback picture of Amitabh with her daughter Aaradhya, she wrote, "Happy Birthday Pa-Dadaji...God Bless always." Her post came amid rumours of her tiff with the Bachchan family. Amitabh turned 82 on Friday.