Byomkesh Bakshi is an Indian-Bengali fictional detective created by Sharadindu Bandyopadhyay. Referring to himself as a "truth-seeker" or Satyanweshi in the stories, Bakshi is known for his proficiency with observation, logical reasoning, and forensic science which he uses to solve complicated cases, usually murders, occurring in Calcutta. One of the most popular sleuths of Bengali literature, Byomkesh Bakshi appeared for the first time in the story "Satyanweshi" — a story of murder dealing with illegal trafficking of opium. He appears in alias — under the pseudonym of Atul Chandra Mitra. It is here that Byomkesh meets Ajit Bandyopadhyay, a writer, who would become a constant companion of him and it is Ajit who narrates the Byomkesh stories.