After winning the Junior Nationals in 2015 and 2016, Kumar was picked up by Patna Pirates for the PKLseason 4. He later transferred to Jaipur Pink Panthers. he later won his second trophy with Jaipur pink panthers in 2022 as a captain.In 2023, Kumar competed for India at the 2022 Asian Games, where the Indian team won gold, controversially defeating Iran 33–29 in the finals.