Q. Where does the South Koel River originate?
Answer: Nagari Hill
Notes: The South Koel River originates at Nagari Hill in Ranchi district, Jharkhand, at about 600 meters elevation on the Chota Nagpur Plateau. It is part of the Brahmani River system, flowing through Jharkhand and Odisha. Sources identify Nagari village near Ranchi as the origin point. Other options like Gulgul Pat, Parasnath Hill, and Netarhat are not recorded as the source of the South Koel River.