[4] Brar was born into a Sikh family in Meerut, Uttar Pradesh,[5] where his father served as a soldier and police officer.
In 2011, Brar began playing for the Ropar district team, and later went on to represent Punjab at the under-16 level.
[9][10] After playing in IPL 2019, Brar was named in the India Under-23 squad for a five-match one-day series against Bangladesh Under-23, held at the Ekana Cricket Stadium in Lucknow in September 2019.
[12] On 30 April 2021, against Royal Challengers Bangalore, Brar took his maiden IPL wicket, of Virat Kohli, and finished the match with the figures of 3 for 19 in his four overs.
[14] In February 2022, he was bought by the Punjab Kings in the auction for the 2022 Indian Premier League tournament.