Sangwan was born on 1 January 1993 in Shekhpura village of Haryana state's Karnal district to a Jat family.
[4][5] He started his career at avery early age, picking up the gloves when he was only 11, at his uncle’s boxing academy in the village.
Sumit Sangwan represented India in the AIBA World Boxing Championships in Almaty Kazakhstan.
[6] He lost out to Adilbek Niyazymbetov of Kazakhstan in the quarterfinals of the World Boxing Championships.
[7][8][9] Sumit participated in the World Series of Boxing for American outfit USA Knockouts in 2014.