Question

Describe how the Himalayas have been divided on the basis of regions from west to east

Answer 1

Himalayas are divided from west to east on the basis of rivers such as-
Punjab Himalayas- between Indus and Satluj rivers
Kumaon Himalayas- between      Satluj and Kali rivers
Nepal Himalayas-      between      Kali and Teesta rivers
Assam Himalayas-  between Teesta and Dihang rivers
Hope it helps you

Answer 2

Area b/w indus and satluj river is known as punjab himalayas or kashmir and himachal himalayas.
Area b/w satuj and kali river is known as kumaon himalayas.
Area b/w tista and kali river is known as nepal himalayas.
Area b/w tista and dihang river is known as assam himalayas.
 
i hope it helped!!!