Himalayas (Definition-1)

Himalaya means the abode or home (Aalaya) of snow (ihma). There is snow in the Himalayas throughout
the year at heights above about 4,500 metres. In winter, snow falls at elevations down to about 2000 metres. The roads to many villages and towns that are high in the mountains are blocked by snow in winters, cutting these areas off from the rest of India.

The rivers that rise from the Himalayas are perennial – meaning, they flow throughout the year.