Rani Mukerji was born on March 21, 1978, in Mumbai. Her father, Ram Mukherjee, was a film director and her mother, Krishna, was a playback singer. Rani is part of the Mukherjee-Samarth family.

Pictured: Rani Mukerji as a toddler with her dad, the late Ram Mukherjee

Rani has many other family members in the film industry as well. Kajol and Ayan Mukerji are her paternal cousins.

Pictured: Doesn't Rani Mukerji look adorable as a little girl in this photograph? We surely think so!

Rani Mukerji studied at Maneckji Cooper High School in Juhu and graduated with a degree in Home Science from SNDT Women's University.

Pictured: A young Rani Mukerji (C) with mother Krishna Mukherjee and older brother Raja

The actress is a trained Odissi dancer and started training in the dance form when she was in standard 10.

Pictured: Rani Mukerji pictured here with older brother Raja. Raja is a film producer and director.

Let's take a look at some rare pictures of Rani from her childhood and later!

Pictured: Rani Mukerji shares a close bond with her older brother Raja Mukherjee

Rani Mukerji (extreme left) sporting a ponytail in an undated picture with her cousins.

Rani Mukerji (in the polka-dotted blue dress) with her friends at a party.

A 20-something Rani Mukerji celebrating her birthday with her family.

Rani Mukerji (extreme left) at a function. She made her big screen debut in 1996 with the Bengali film Biyer Phool.

Rani Mukerji pictured here in an au naturel look.

Rani Mukerji with her mother Krishna Mukherjee.

Rani Mukherjee poses with her father, Ram Mukherjee. He passed away on October 22, 2017.

A lovely Rani Mukerji (in pink saree) at a wedding.

Rani Mukerji made her Bollywood debut in 1997 with the film Raja Ki Aayegi Baraat.

Rani Mukerji clicked with Javed Jaffrey during one of her film promotions.

Rani Mukerji with Abhishek Bachchan in a still from Yuva (2004).

Rani Mukerji and Junior Bachchan again, this one is from Bas Itna Sa Khwaab Hai.

Rani Mukerji and Shah Rukh Khan at an awards function. They co-starred in popular films like Kuch Kuch Hota Hai (1998), Chalte Chalte (2003), Veer-Zaara (2004), Paheli (2005) and Kabhi Alvida Naa Kehna (2006).

Rani Mukerji with Anil Kapoor. They starred together in the 2003 thriller Calcutta Mail.

Rani Mukerji with former television personality Ruby Bhatia on the sets of the latter's chat show.

Rani Mukerji with the Khan brothers - Sohail and Salman.

Rani Mukerji during the shooting of Saathiya (2002). She co-starred with Vivek Oberoi in the film, which was a remake of the 2000 film Alaipayuthe.

Rani Mukerji with late Shiv Sena supremo Bal Thackeray at an event.

Rani Mukerji is truly the 'Rani' of Bollywood! Here's wishing a very happy birthday to Rani!