Mahi also known as Rimpi Gill was born on 19 December 1975 in Chandigarh,Punjab in a Sikh family. She has completed her Masters in theater from Panjab University, Chandigarh (Punjab) in 1998.
Mahi got her first break with the Punjabi based Bollywood film Hawayein and has done a couple of Punjabi films along with theatre. Anurag saw her first at a party with her friend Ayush Kumar( Identity still unknown)and instantly finalized her to play the character of Paro in movie Dev D.She has worked in Saheb, Biwi Aur Gangster with Jimmy Shergill and Randeep Hooda which released on 30 September 2011. This movie earned her a nomination at filmafare awards for best actress. Gill has also appeared in Paan Singh Tomar with Irrfan Khan.