The doting parents also shared wonderful birthday wishes for him and Shilpa's post is winning the Internet.
Shilpa Instagrammed a series of pictures with Viaan, right from his birth till now and captioned them as, "21st May 2012, a new me was born. 6 years today, the dichotomy of wanting you to be my baby forever and excitement of seeing you grow up and your achievements in this life. Difficult choices!!
Want to hold you in my arms for longer today, like when you were a baby, the toddler is gone, now there's a little boy and tomorrow there will be a young man in his place... but you will always be my baby. Happy birthday my son, love you more than you would ever know."
Take a look.
Raj Kundra shared a short video of the family, which has some wonderful pictures and wrote, "My little munchkin turns 6 today, can't believe how time has flown. Thank you, Shilpa Shetty for making me a proud father."
And, Shilpa's sister Shamita shared this.
Viaan is a cute little rockstar and these videos are proof. He prepared this song for Shilpa on Mother's Day.