[3] Kumar, born and brought up in Palra, Gurgaon, Haryana, is the son of Ransingh Yadav, and Ballo Devi.

He represented India for the first time at the 2006 South Asian Games in Sri Lanka.

He won the Most Valuable Player award in the first season of the league, leading his team to the finals where they lost to Jaipur Pink Panthers.

He scored 155 raid points in 16 matches, to become one of the most successful raider of Pro Kabaddi.

[4] He led U Mumba to their maiden Pro Kabaddi title in 2015 in which he finished the season with 74 raid points.

U Mumba reached the final where they lost against Patna Pirates by a margin of only 2 points.

[6] Though there was a decline in his performance at the final stages (during his last matches), he continued to influence by his captainship qualities.