 Tomar was born on 3 February 2001 in Ratanpur village, Khargone district, Madhya Pradesh, into a family of farmers, as the youngest of three children.He often went hunting with his father Veer Bahadur, a landlord, and learned about sport shooting from his cousin Navdeep Singh Rathore.Tomar started to receive training in 2015 at the Madhya Pradesh Shooting Academy in Bhopal.