Rishi Kapoor's daughter Riddhima delivered a baby girl yesterday afternoon

Ranbir Kapoor's sister Riddhima delivered a baby girl yesterday afternoon in New Delhi. The newborn has been named Samara.

Says a friend of the family, "The Kapoors are overjoyed. They have been celebrating as the congratulatory phone calls have been pouring in."

Riddhima and her Delhi-based businessman hubby Bharat Sahni were married in 2006.

Adds the family friend, "Rishi is a nana, Neetu a naani and Ranbir a maama! It still has to sink in."

The entire family was present at the hospital at the time of her delivery. Rishi's sister Rima Jain was also there.

Ranbir had always stated that he would make it a point to be with his sister when the bundle of joy would arrive.