Jyoti Kumar Sinha was born in Patna, Bihar. He served as Director General of Central Reserve Police Force and later as Member of the National Disaster Management Authority and RAW chief. He is a Bihar cadre Indian Police Service officer of the 1967 batch.
J.K. Sinha completed his schooling from St. Xavier's High School, Patna and then graduated with Honours in History from Patna College. He joined the Indian Police Service in 1967 following in the footsteps of his father and grand father. His grandfather, late Shri A.K. Sinha, was the first Indian to become IG of Police, Bihar way back in 1939. J.K. Sinha's father was also an IP officer who also rose to head Bihar Police as IG.
In 2019, he received the Padma Shri honour for his contribution in the field of social work.