[9] It is noteworthy that he started as a freestyle wrestler during his early days but shifted to the Greco-Roman style after the 2009 Junior National Wrestling Championships.

[10] Hardeep's stint at the 2013 World Wrestling Championships proved to be short-lived as he lost in the round of sixteen to Moldava's Marin Cazac by 3–1.

[11][12] At the 58th Senior National Wrestling Championship, which was held at Kolkata in November, Hardeep, representing Railways Sports Promotion Board, won gold medal in the 96 kg category of Greco-Roman.

[13][14] The year ended on a high note for Hardeep as he was able to win gold medal at the 2013 Commonwealth Wrestling Championship after defeating South Africa's Julian Labuschagne in the final of the 96 kg category of Greco-Roman.

He got a chance to secure a bronze medal through repechage but lost to China's Di Xiao by 4-0 – finishing fifth in the tournament.

[23] Hardeep ended the year on high note by winning gold medal at the 60th Senior National Wrestling Championship.