To make her daughter's day special, the 45-year-old actor shared a video on Instagram and wrote:" Almost an adult. All of 17 and part of my heart always."
"Happy birthday to the most beautiful girl in the world!#allgrownup #lovemybabygurl," she added.
The adorable slideshow video features many throwback pictures of the mother-daughter duo.
The video begins with a picture of Kajol holding a young Nysa.
Meanwhile, actor Ajay Devgn too had shared a lovely post on Twitter wishing his daughter.
The 'Singham' actor posted a picture with her and wished her 'happiness today and forever'.
The photo shows the 51-year-old actor taking the selfie while dressed in a blue T-shirt.
Clad in a white top and red skirt, Nysa is seen in all smiles as she poses for the selfie.
( With inputs from ANI )