Satyanveshi is Rituparno Ghosh's last film and is to be released after his death. The film is based on Byomkesh Bakshi who was a detective and used to call him Satyanveshi/ Satyanbeshi.
The word is made up of Sanskrit [and Bangla] words Satya, that is Truth, and Anveshan, which means investigation, search, discovery. Hence, Satyanveshi would be someone who searches for the truth, or discovers the Truth, or in short, Truth-seeker, as the character Byomkesh Bakshi calls himself.