Question

Write two facts about the Ghaghara, the Gandak, and the Kosi.

Answer 1

Hint: The Gandak River is one of the major rivers of Nepal and a left-bank tributary of the river Ganga. It lies between the Kosi river system in the east and the Ghaghara river system in the west.

Complete step-by-step solution:
The Ghaghara, the Gandak, and the Kosi are the main left bank tributaries of the river Ganga. The left bank tributaries are the ones that rise from the glaciers in the Himalayas.
The major left-bank tributary of the River Ganga is the Ghaghara River, which also known as Gogra.
1. It begins from the high southern Himalayas of China, and then it flows to the south-east portion of Nepal.
2. Ghaghara River consists of ample Alpine vegetation in the tropical forest when it enters India’s Siwalik range.
Gandak River, also known as Narayani River, is a river in central Nepal and northern India.
1. The Gandak river is formed by the Kali and Trishuli rivers, which flows southwest into India and then turns across the Indo-Gangetic Plain.
2. In the vicinity of Valmikinagar which is around the Gandak River, Chitwan National Park of Nepal and Valmiki National Park of India are adjacent to each other.
The Kosi River is also called Saptakoshi because of its seven upper tributaries.
1. It is separated from the Yarlung Tsangpo River in the north, the Mahananda River in the east, and the Gandak River in the west.
2. The Kosi river is unstable in nature as it has been attributed to the heavy silt it carries during the monsoon season and hence, results in heavy floods.

Additional Information: The Ghaghara river serves drinking water and agriculture facility to the people. Also, the Gandak River is older than the Himalayas. Due to the tectonic activities, the mountains are forced higher and the river has cut through the uplift. The northern slopes of the Himalayas which are there in Tibet and the southern slopes present in Nepal are drained by the Kosi river.

Note: The actual meaning of the name Ghaghara River is ‘blessed water from the holy mountain’. Also, The Gandak river is mentioned in the ancient epic Mahabharata. Its evolution is described in Shiva Purana. Also, the Kosi river is also known as the sorrow of Bihar.