Rani was born on 4 December 1994 in Shahabad Markanda in the Kurukshetra district of Haryana, to a poor family. Her father works as a cart-puller. She took to field hockey in 2003 and trained at the Shahbad Hockey Academy under Baldev Singh, a recipient of Dronacharya Award.

As she started to play professionally, GoSports Foundation, a sports non-governmental organization provided her with monetary and non-monetary support as her family found it hard to support her dreams financially.

For Rani, the only daughter of a cart-puller in Shahbad, Haryana, life was always about grabbing that slightest of chances. Luckily for Rani, who hails from a state from where women were once frowned upon for taking up sport, her father did not throttle her love for the sport. Despite their obvious lack of funds, he even encouraged it.