Kullu Manali and Shimla Himachal Pradesh, Mahabaleshwar, Panchgani in Maharashtra, and if you are travelling North East then
Gangtok, Lachung, Lachen are best hill stations to visit.
Hi Vinit, Mentioned below are some of the picturesque and pristine hill stations in India, which are not only perfect to retire and settle down, but also make for a wonderful and memorable vacation. Visit these hilly retreats during the summer and beat the scorching heat, or enjoy their heavenly beauty during the winters and soak in their charm and appeal. You can check out the article attached below with my comment. Thanks!
Some of the south Indian hill stations could be :
1. Munnar
2. Vagamon
3. Wayanad
4. Devikulam
5. Ooty
6. Kodaikanal
7. Coonoor
8. Yerkaud
9. Kudremukh
10. Chikmaglur
11. Coorg