The largest river in Manipur is the:

Barak River
Manipur River
Imphal River
Yu River

The correct answer is the Manipur River.

The Manipur River is the largest river in the Indian state of Manipur. It is a tributary of the Barak River, which in turn is a tributary of the Brahmaputra River. The Manipur River is about 200 kilometers long and flows through the state of Manipur from north to south. The river is a major source of water for irrigation and drinking water in the state. It is also a popular destination for fishing and boating.

The Barak River is a river in northeastern India. It is the largest river in the state of Assam and the third largest river in the Northeast India. The Barak River is a tributary of the Brahmaputra River. The river is about 500 kilometers long and flows through the states of Assam, Manipur, and Mizoram. The Barak River is a major source of water for irrigation and drinking water in the region. It is also a popular destination for fishing and boating.

The Imphal River is a river in the Indian state of Manipur. It is a tributary of the Manipur River. The Imphal River is about 50 kilometers long and flows through the state of Manipur from north to south. The river is a major source of water for irrigation and drinking water in the state. It is also a popular destination for fishing and boating.

The Yu River is a river in the Indian state of Manipur. It is a tributary of the Imphal River. The Yu River is about 30 kilometers long and flows through the state of Manipur from north to south. The river is a major source of water for irrigation and drinking water in the state. It is also a popular destination for fishing and boating.