These are the original Bengali titles by Sharadindu Bandyopadhyay, followed by their English translations.

. Unlike traditional detectives who focus solely on the crime, Byomkesh often explores the human psychology and social nuances of Calcutta (Kolkata) during the mid-20th century. Key Facts: The "Satyanweshi"

To understand the keyword, we must break it down into three components: , Index of , and Patched .