The Parbati River is a major tributary of the:

Beas River
Sutlej River
Ravi River
Chenab River

The correct answer is: The Parbati River is a major tributary of the Chenab River.

The Parbati River is a river in the Indian state of Himachal Pradesh. It is a tributary of the Chenab River, which in turn is a tributary of the Indus River. The Parbati River originates in the Pir Panjal Range and flows through the Kullu Valley before joining the Chenab River near the town of Tandi. The Parbati River is a popular destination for white-water rafting and kayaking.

The Beas River is a river in the Indian states of Himachal Pradesh and Punjab. It is a tributary of the Sutlej River, which in turn is a tributary of the Indus River. The Beas River originates in the Beas Kund in the Himalayas and flows through the Kullu Valley before joining the Sutlej River near the town of Haripur. The Beas River is a popular destination for fishing and boating.

The Sutlej River is a river in the Indian states of Himachal Pradesh, Punjab, and Haryana. It is a tributary of the Indus River. The Sutlej River originates in the Himalayas and flows through the Sutlej Valley before joining the Indus River near the town of Sukkur in Pakistan. The Sutlej River is a major source of irrigation water for the Indian states of Punjab and Haryana.

The Ravi River is a river in the Indian states of Himachal Pradesh, Punjab, and Haryana. It is a tributary of the Chenab River, which in turn is a tributary of the Indus River. The Ravi River originates in the Himalayas and flows through the Ravi Valley before joining the Chenab River near the town of Madhopur. The Ravi River is a popular destination for fishing and boating.

The Chenab River is a river in the Indian states of Himachal Pradesh, Jammu and Kashmir, and Punjab. It is a tributary of the Indus River. The Chenab River originates in the Himalayas and flows through the Chenab Valley before joining the Indus River near the town of Trimmu. The Chenab River is a major source of irrigation water for the Indian states of Jammu and Kashmir and Punjab.