The Sutlej river enters India from Tibet through the:

The Sutlej river enters India from Tibet near the Shipki La pass in the Kinnaur district of Himachal Pradesh, at a height of about 3,930 metres.

About Shipki La:

• It is a mountain pass on the India-China border in the Kinnaur district.
• The Sutlej flows through a deep gorge here as it cuts across the Himalayan ranges.
• It has been an old trade route between India and Tibet; border trade through it was carried on for many years and has been suspended at times.
• It is one of the few points where a major Himalayan river crosses into India from Tibet.

Course of the Sutlej:

• It rises from Lake Rakshastal, near Lake Mansarovar and Mount Kailash in Tibet, where it is called Langqen Zangbo ("Elephant River").
• It is older than the Himalayas and kept cutting its valley as the mountains rose.
• After entering India, it flows south-west through Kinnaur, Shimla and Bilaspur districts of Himachal Pradesh.
• It enters Punjab near Nangal and flows west, joined by the Beas.
• It then forms part of the India-Pakistan border before entering Pakistan, where it joins the Chenab to form the Panjnad.
• Its total length is about 1,450 km, of which about 1,050 km is in India.

Projects on the Sutlej:

• Bhakra-Nangal, Karcham Wangtoo, Rampur and others.
• The Indira Gandhi Canal draws water from the Sutlej-Beas system.

Ancient name:

In the Rigveda, the Sutlej was called the Shutudri; the Greeks called it the Zaradros.

Other Himalayan passes:

• Nathu La (Sikkim): border trade with Tibet.
• Lipulekh (Uttarakhand): Kailash Mansarovar Yatra route.
• Karakoram Pass (Ladakh): old Silk Route to Xinjiang.
• Bara Lacha La (Himachal Pradesh): on the Manali-Leh highway.

Why not the other options?

• ✗Nathu La is in Sikkim.
• ✗Lipulekh is in Uttarakhand.
• ✗The Karakoram Pass is in Ladakh.