He made his first-class debut in 2007/08 Ranji season at Karnail Singh Stadium against Jammu and Kashmir, where he played as a specialist batsman. He scored 120 off 232 balls with 17 boundaries as Railways cricket team won by innings and 88 runs. In July 2018, he was named in the squad for India Green for the 2018–19 Duleep Trophy. He was the leading wicket-taker for Andhra in the 2018–19 Vijay Hazare Trophy, with twelve dismissals in eight matches.
International career
T20I Career
Karn Sharma made his T20I debut on 7 September 2014 against England Cricket Team
ODI career
Karn Sharma made his ODI debut on 13 November 2014 against Sri Lanka. Sadly he had a terrible outing with the ball on debut and he didn't get a chance to bat for the team
Test career
Karn Sharma made his Test debut on 9 December 2014 against Australia within a month of his ODI debut. He picked up 4 Wickets in 2 innings and dismissed his IPL teammate David Warner twice in the match. However he managed to score only 8 runs from 2 innings.
He featured for Royal Challengers Bangalore in 2009. He was signed up by the IPL franchise Sunrisers Hyderabad in 2013. In a line-up comprising Dale Steyn, Thisara Perera and Amit Mishra, young Sharma was the bowler the opposition batsmen were expected to target. He responded with a mature performance. His performance against Kings XI Punjab early on in the tournament was ample proof of his potential, as he beat the Kings XI batsmen with his spin. He fortified an already strong bowling attack with a decent economy rate and was a good foil to Amit Mishra, the senior legspinner in the side. When he was given the chance also contributed with the bat scoring a stubborn unbeaten 39 when Sunrisers Hyderabad was staring at their first home defeat against Chennai Super Kings. In 2014 IPL auctions, he was bought by Sunrisers Hyderabad for Rs 3.75 crore, in a bidding war with Kings XI Punjab. He was the highest paid uncapped Indian player in IPL 2014. In 2015, he was retained by the Sunrisers Hyderabad and he plays as the lead spin bowler for the team. After being retained in the team for the 2016 season, he won the 2016 Indian Premier League with Sunrisers Hyderabad. In February 2017, he was bought by the Mumbai Indians team for the 2017 Indian Premier League for 3.2 crores. He won the 2017 Indian Premier League with Mumbai Indians, he bowled a valuable spell by giving away only 18 runs in 4 overs in the final, he also bowled 12 dot balls in the match. In January 2018, he was bought by the Chennai Super Kings for ₹5 crores in the 2018 IPL auction.
