Filmmaker Soundarya Rajnikanth, who is known for directing India's first motion capture animated film, 'Kochadaiiyaan' featuring her superstar father, Rajnikanth becomes mother by delivering a baby boy at a private hospital.

Soundarya was married to an industrialist, Ashwin Ramkumar in 2010 and the baby boy is couple's first child.

"The baby was born late on Wednesday night at Apollo hospital. Both—the baby and the mother – are absolutely fine," a source close to Rajnikanth told.

Rajnikanth already has two grandsons, Yatra and Linga from his second daughter Aishwarya, who is married to 'Shamitabh' actor, Dhanush.