Question: Who wrote the memoir about a friend who was a club promoter, musician , writer and served 17 years in prison for manslaughter?
Sentence (from "Vappala Balachandran"): Vappala Balachandran is an Indian national security intelligence specialist and a former Indian police officer who served 17 years in the state of Maharashtra, India and 19 years in foreign intelligence service.
Relevant evidence: No