[2] He made his List A cricket debut at the age of 19 during the 2015–16 Vijay Hazare Trophy in December 2015.
Later that month, Himmat's father Tejbir Singh filed a criminal defamation case against Kirti Azad, Bishan Singh Bedi, Surinder Khanna and Sameer Bahadur for allegedly stating that Tejbir had exchanged ₹25 lakh for his son's selection in the Delhi squad for the Vijay Hazare Trophy.
[3] He made his first-class debut for Delhi in the 2017–18 Ranji Trophy on 14 October 2017.
[6] Later the same month, he was bought by the Royal Challengers Bangalore in the player auction for the 2019 Indian Premier League.
[7][8] He was released by the Royal Challengers Bangalore ahead of the 2020 IPL auction.