Topshe always takes an active part in Feluda's adventure. Though in most cases, he follows Feluda's instructions or indications, there are instances where he himself gets involved into some action/investigation. To mention a few, he and Jatayu (a.k.a. Lalmohan Ganguly) sneaks into a warehouse in 'Patan' (Nepal) to discover vast collection of smuggled narcotics (book "Jato Kando Kathmandute"); finds out the stabbed body of a missing man in the woods (book "Darjeeling Jomjomat"); replaces the pink pearl with a fake for safe-keeping (book "Golapi Mukta Rahasya"). The last incident impressed Feluda as well. However, all these activities mainly comes in the latter part of the series. He also interrogated the suspects in "Apsara Theaterer Mamla" when Feluda was sick and bed-ridden. Feluda solved the case just from the report of that interrogation.