Hey Harmeet.
what kind of places are you looking for?
what will be your starting point?
would be able to help better if I would be knowing this.
thanks
This is a very open ended questions. People would suggest the places they have been to. If you can just crop it to a specific region like North/South/East/West India or international destinations, it would be easier.
Spiti, without a doubt because spiti still count on some of less explored places. And you get nearby 25 places to explore including Kunzum Paas, Kibber/Tabo/Dhankar Monasteries an so many more..