The Loktak Hydroelectric Project is located on the:

Manipur River
Imphal River
Barak River
Yu River

The correct answer is: The Loktak Hydroelectric Project is located on the Manipur River.

The Loktak Hydroelectric Project is a hydroelectric power station located on the Manipur River in Manipur, India. The project was commissioned in 1980 and has a installed capacity of 105 MW. The project consists of a dam, a power station, and a reservoir. The dam is a 200 m high embankment dam and the power station is a run-of-the-river power station. The reservoir is a 24 km2 reservoir.

The Imphal River is a river in Manipur, India. The river is a tributary of the Barak River. The river is 160 km long and has a drainage basin of 2,500 km2. The river is a major source of water for irrigation and drinking water in Manipur.

The Barak River is a river in India and Bangladesh. The river is a tributary of the Brahmaputra River. The river is 586 km long and has a drainage basin of 27,000 km2. The river is a major source of water for irrigation and drinking water in India and Bangladesh.

The Yu River is a river in Manipur, India. The river is a tributary of the Manipur River. The river is 100 km long and has a drainage basin of 1,500 km2. The river is a major source of water for irrigation and drinking water in Manipur.