The correct answer is: a) Khandong.
The Khandong Hydroelectric Project is a 100 MW hydroelectric power plant located on the Kopili River in the state of Meghalaya, India. The project was commissioned in 2013 and is owned and operated by the North Eastern Electric Power Corporation Limited (NEEPCO).
The Khandong Hydroelectric Project is a run-of-the-river project, which means that it does not require a reservoir. The project consists of a 100 m high concrete gravity dam, a 1.2 km long headrace tunnel, a 1.5 km long tailrace tunnel, and a power house with four 25 MW turbines.
The Khandong Hydroelectric Project is a significant source of electricity for the state of Meghalaya. The project also provides irrigation and flood control benefits to the region.
The other options are incorrect because:
- Umtru is a hydroelectric project located on the Umtru River in the state of Manipur, India.
- Myntdu is a hydroelectric project located on the Myntdu River in the state of Nagaland, India.
- Loktak is a large freshwater lake located in the state of Manipur, India.