National Highway 320G (India)National Highway 320G, commonly referred to as NH 320G is a national highway in India. It is a secondary route of National Highway 20. NH-320G runs in the state of Jharkhand in India.RouteNH320G connects Hat Gamaria, Jagannathpur, Baraiburu, Saddle, Manoharpur, Anandpur, Bano and Kolebira in the state of Jharkhand.