Kusaha switching station located at kushaha of Sunsari district in Koshi Zone was built to import electricity from Kataiya, India. This switching station is connected to the 132kV line of Lahan and Duhabi substations, to evacuate imported electricity to the eastern region. It was built in 1999 without circuit breakers or protection systems. In 2006, a circuit breaker and a complete protection system were installed on the Kataiya line.