Gaurav got involved in theatre from a young age as part of the group Charbak, where he not only assisted in the backstage work (audio technician in the play Rong, Doodh Kheyechhe Meow and the runaway success Cholo Potol Tuli), but also acted as 'Topshe' in the play Apsara Theatre-er Mamla based on Satyajit Ray's thriller of the same name, under the direction of his father, who himself played the role of Feluda.