Karisma Kapoor's happiness knows no bounds - her sister, actress Kareena Kapoor, welcomed a baby boy on Sunday.

Karisma shared the joy of becoming a "maasi again" on Instagram by posting a million-dollar throwback picture of Kareena Kapoor from when she was a little baby. The blast from the past features Randhir Kapoor holding newborn daughter, Kareena, in his arms with pint-sized Karisma Kapoor sitting next to him and happily posing for the camera.

Sharing the photo, Karisma Kapoor wrote: "That's my sis when she was a newborn and now she's a mama once again! And I'm a maasi again, so excited." Kareena Kapoor and Saif Ali Khan are also parents to four-year-old Taimur.

Kareena Kapoor welcomed her second baby at Mumbai's Breach Candy Hospital around 9 am on Sunday.

Kareena Kapoor's entire family made way to the Breach Candy Hospital in South Mumbai where the actor gave birth to her second son on Sunday morning. All from husband Saif Ali Khan with son Taimur, mother Babita, father Randhir Kapoor to sister Karisma Kapoor were seen at the hospital Sunday afternoon.