Early years Ritwik gave his first trial at a
Mohun Bagan non-residential academy when he was in ninth grade where he learnt the nuances of football. He began his professional journey with Calcutta Customs in the CFL First Division before switching to
Kalighat MS in 2016 where they played in the
Calcutta Premier Division Group B. He evolved as a highly rated winger at the club.
Kerala Blasters On 15 July 2020, RitwikDas joined
Indian Super League club
Kerala Blasters. He made his debut on 20 November against
ATK Mohun Bagan in the season opener. He played 4 matches throughout campaign and left the club at the end of the season.
Jamshedpur On 21 October 2021, Ritwik Das joined
Jamshedpur on a one-year deal, with an option to extend for another year. On 26 November, he made his debut as a substitute for
Seiminlen Doungel in a 1–3 away league win over
Goa. On 17 February 2022, he scored his first
Indian Super League goal against
Mumbai City. He scored 4 goals in 17 appearances and won the
2021–22 Indian Super League League Winners Shield with the club. == International ==