On 16 December 2012 Singh was brought in the first ever Hockey India League auction by the franchise Ranchi Rhinos for a winning bid of $13,000. He made his debut for the Rhinos on 16 January 2013 against Punjab Warriors at the Surjit Hockey Stadium in Ranchi's first ever Hockey India League match in their history and he scored the second goal for the team 50 minutes into the game as the Rhino's ran out 2–1 winners. He then scored his second goal of the season in the next match against Mumbai Magicians on 18 January2013 at the Astroturf Hockey Stadium in Ranchi, Jharkhand when he scored 22 minutes into the game as Ranchi won the match 3–1. Singh then scored his third goal of the season on 23 January 2013 against Delhi Waveriders at the Astroturf Hockey Stadium when he scored 60 minutes into the match; however his goal was not enough as Ranchi lost the match 4–5. He then scored his first double of his career on 26 January 2013 against Uttar Pradesh Wizards at the Dhyan Chand Astroturf Stadium when he scored 58 minutes into the match as well as 67 minutes into the match as he led Ranchi to a 3–1 victory. Singh then won his first man of the match award on 28 January 2013 after he scored the winning goal for Ranchi Rhinos against the Mumbai Magicians at the Astroturf Hockey Stadium when he managed to find the net 49 minutes into the match to give Ranchi a 2–1 victory. Singh then began the month of February with a goal on 2 February 2013 against Punjab Warriors at the Astroturf Hockey Stadium when he found the net 34 minutes into the game as Ranchi drew the match 1–1. He then scored his final goal of the regular season on 4 February 2013 against the Punjab Warriors at the Surjit Hockey Stadium when he scored 62 minutes into the game as Ranchi Rhinos won 3–2. Singh then played his first match for Ranchi Rhinos in the Hockey India League play-offs on 9 February 2013 against the Uttar Pradesh Wizards at the Astroturf Hockey Stadium in the semi-finals in which he helped Ranchi Rhinos reach the final of the Hockey India League with two goals he scored 5 minutes into the game and 66 minutes into the game; Ranchi won the match 4–2. Then in the final Singh managed to help Ranchi Rhinos win the league title over the Delhi Waveriders on 10 February 2013 at the Astroturf Hockey Stadium. After the season ended Singh won the Hockey India League's Ponty Chadha Trophy for the Upcoming Player of the Tournament award after scoring ten goals in thirteen matches and being the second top scorer throughout the tournament.
