Which of the followings is the oldest mountain range? Himalayas Nilgiri Hills Satpuras Karakoram Aravalis

To determine which of the mountain ranges listed is the oldest, we need to consider the geological history and the age of each range.

1. Himalayas: This mountain range is relatively young in geological terms, formed mainly due to the collision of the Indian and Eurasian tectonic plates about 50 million years ago.

2. Nilgiri Hills: Located in southern India, these hills are also relatively young, having been formed around 10-20 million years ago.

3. Satpuras: This range is older than the Himalayas and Nilgiri Hills, estimated to have formed around 200 million years ago during the Mesozoic era.

4. Karakoram: This range includes some of the highest peaks in the world, including K2. It has a complex formation history, estimated to have started about 50 million years ago, similar to the Himalayas.

5. Aravalis: The Aravalis are among the oldest mountain ranges in India, dating back to around 3.2 billion years ago, making them some of the oldest mountains in the world.

Conclusion:

Based on the geological ages provided, the Aravalis are the oldest mountain range among the options listed.