Answer:
The Greater Himalayan or Himadri: The innermost Himalayan range is the worlds highest, with an average height of about 6,000 m. ...
The Lesser or Middle Himalaya (The Himachal): It lies to the south of Himadri with an average height of 5,000 metres above the sea level and ranging in width ...
The Outer Himalaya or the Siwaliks: It is the southernmost range of the Himalayas forming the Himalayan foot hills
Step-by-step explanation: