He is a young but heavily built lad originally from Baglung and brought up in Chandigarh, India. He was just one-year old when his family took him to Punjab from Baglung.

Karan was playing excessive cricket with the tennis ball that got into his parent's nerves and they finally took a decision to send him back to Nepal. The decision actually got backfired for his parents but worked in the well-being of Nepali cricket. For a guy who was bowling over 130 kmmph, he was already a national team material. They called him for the camps in Kathmandu and now, impressive with the raw pace and the physique he carries, Karan is now expected to be the next generation seamer of Nepali cricket.

He represented Panchakanya Tej in the 2014 Nepal Premier League, where he picked up 10 wickets from the 7 matches at an average of 13.40.

He was selected in 18 men preliminary squad for the 2014 ICC World Cricket League Division Three but did not make it to the final squad. Then he went India along with his teammate Aarif Sheikh in September 2014 for a 10-day training at Just Cricket Academy in Bangalore.

He toured Sri Lanka along with the team in November 2014 where he played two three-day matches against Sri Lanka Cricket Combined XI.

He made List A debut in 2015 ICC World Cricket League Division Two in Namibia in January 2015. Playing his first tournament for Nepal, he picked up 9 wickets in 6 matches at an average of 15.88 and an economy of 3.31,^[11] including five-wicket haul against Canada,^[12] which is the best bowling figures of a Nepalese bowler in the List A format.^[13]

He made his Twenty20 International debut for Nepal against the Netherlands on 30 June 2015.