Which Himalayan range was formed last?

Correct answer: (c) Shivalik

Explanation

The Himalaya rose in stages, from north to south, as the Indian plate pushed against the Eurasian plate:

• the Greater Himalaya (Himadri) first, about 40–50 million years ago;
• the Lesser Himalaya (Himachal) next, about 25–30 million years ago;
• the Shivalik (Outer Himalaya) last, about 2–20 million years ago, from loose sediments brought down by rivers from the higher ranges.

The Shivalik is therefore the youngest range.