The 66-year-old Bollywood's "Dream Girl" took to Twitter today to share the news of becoming a grandmother and thanked her fans for congratulatory messages.
"Thank you all for your good wishes. Yes Ahaana has delivered a baby boy & we are all so thrilled! Mother & baba are fine!," Hema tweeted.
Ahaana's elder sister Esha hosted a star-studded baby shower for her in March.
The new mother, who is a budding Odissi dancer, tied the knot with Delhi-based businessman Vaibhav Vohra on February 2, 2014.