Which among the following tributaries of the Ganga river rises as the Karnali river in the Tibet autonomous region of China?

Option 1 : Ghaghara

The correct answer is option 1) i.e. Ghaghara.

• Ghaghara river is a major left-bank tributary of the Ganga river which rises as the Karnali River in the high Himalayas of southern Tibet Autonomous Region, China, and flows southeast through Nepal.
• Cutting southward across the Siwalik Range, it splits into two branches that rejoin south of the Indian border and form the Ghaghara proper.
• It flows southeast through Uttar Pradesh and Bihar states to enter the Ganges below Chapra after a 970-km course.
• The major tributaries—the Kuwana, the Rapti, and the Little Gandak rivers—all flow into the Ghaghara from the mountains to the north.
• Together with the Ganges and its tributaries, it has helped form the vast alluvial plain of northern Uttar Pradesh.
• Along its lower course, it is also called the Sarju River and the Deoha.