From Asansol in West Bengal, Ritwik spent his formative years at the Mohun Bagan Academy. The 23-year-old signed his first professional contract with Calcutta Customs in the CFL First Division before making his way in 2016 to Kalighat MS who were competing in the CFL Premier Division B.
In 2017, Ritwik was offered a contract by Real Kashmir FC who were then competing in the 2nd Division League. The pacey right midfielder was selected from trials RKFC were holding at the SAI Ground in West Bengal.
Das has been part of Real Kashmir’s journey from the 2nd Division to the I-League. He was part of their 2nd Division League campaign which won promotion in the 2017-18 season. Over the next two seasons in the I-League, Ritwik has made 21 appearances.