Patratu is a town in the Ramgarh district of Jharkhand, near the Damodar valley and the Rajrappa hills. It has a coal-mining sector, a thermal power plant, and a dam built by Sir Mokshagundam Visvesvaraya. Sir can I go to patratu valley by own car from Kolkata,and any extra paper need for car please inform me sir Patratu Valley is a scenic spot in Ranchi with a lake, a dam, hills, and forests. You can enjoy boating, biking, camping, and exploring the history and culture of Jharkhand. Patratu Valley , Ranchi: Book Your Tickets & Tours of Patratu Valley at Best Price Only on Thrillophilia. See Reviews, Articles & Photos before Visiting.