Important Glaciers in India (Diamir, Siachen, Gangotri etc)

A glacier is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries.

The largest glacier in the world is the Lambert-Fisher Glacier in Antarctica. At 400 kilometers long, and up to 100 kilometers wide, this ice stream alone drains about 8 percent of the Antarctic Ice Sheet.

The Fedchenko Glacier, located in Tajikistan is the longest glacier in the world outside of the polar regions. The glacier is long and narrow, currently extending for 77 kilometres and covering over 700 square kilometres.

The Siachen Glacier is located in the eastern Karakoram range in the Himalayas, at 76 km long, it is the longest glacier in the Karakoram and second-longest in the world's non-polar areas.