Author: Sir Arthur Conan Doyle Translated By: Abhipsha Chatterjee Produced by: 221B Harrison Road Language: Bengali Type : Story Format : Audio Story Genre : Crime Poster Design : Sumitendra Background Music : Prattyay Characters : Sherlock Holmes - Sumitendra Dr. Watson - Prattyay Professor Moriarty - Sourav Mrs. Hudson - Ananya Grace - Tuli Peter Steiler - Subhadeep Other Characters: Prattyay & Sumitendra