Amidst her family who showered wishes and gifts for their blue eyed girl on her birthday, it was the actress' grandparents' special surprise that brought tears of happiness and joy in her eyes. Alia's grandmother and grandfather played the 'Happy Birthday' song on the harmonica and violin respectively. When their small tribute ended, Alia couldn't stop crying. Shooting the video and posting it on her Instagram was Alia's eldest sister Pooja Bhatt who added, "Happy Birthday Alia!! A glorious rendition of Happy Birthday for @aliaabhatt by her dazzling grandparents! Naturally there was not a dry eye in the house.. Not that there ever is a shortage of waterworks at a Bhatt family do but this one was truly special!#Birthdays #family #grandparents #Bhatts #legacies #giftsthatkeepongiving #memories #waterworks."