distinguish between greater himalayas and lesser himalayas

Lesser/Middle Himalayas:

1. Situated to the south of the Himadri

2. Average height is above 3000m

3. Many health resorts are situated on the southern slope of the mountain range, eg: Shimla, Darjeeling.
  Outer/Lower Himalayas:

1. This is the outer most range, situated on the south of the lesser Himalayas.

2. These discontinuous ranges join the lesser Himalayas in the extreme east.

3. Its average height is about 1200m

Greater Himalayas-
1-the highest mountain ranges of Himalayas.
2-Under perpetual snow,these ranges have an average height of 6000 m.
3-Mountains peaks of more than height of 8000 m are situated in this mountain range. For ex- Nangaparvet 8126 m.
   Lesser Himalayas-
1-Situated south of Himadri.
2-Have an average height of 3000 m.
3- Many health resorts are situated on the southern slope of mountain range.For ex- Shimla etc.