Look at an elevation map of Mexico, then select a town that sits at a high altitude, such as higher than 3,000 ft.

I suggest that u should travel for a while to inspect your candidate countries, though now you are entering the cold season. Talk to the people who live in those places.

Maybe move your assets in India to other investments, such as rental housing, that produce income that u declare only in India. You can access the proceeds from that income in whatever country where you choose to live.