Hello
@Sandeep123000 welcome to NP.
There is huge potential in the .in extension. There are some ebooks which you can read with a kindle unlimited subscription. One of them "Sell Domains Fast: A Step-by-Step guide to help you make more money by Aishwin Vikhona" talks about the disappointing take up of .in names so far (but the book is old 2014) and another (sorry the name won't come to me but it is written by an Indian author) talks about the great potential.
However as mentioned earlier in the thread namebio will show you what is selling, and perhaps equally importantly what has re-sold = i.e. sold more than once. (Namebio is not a complete record, but a large sample of sales on major marketplaces. As far as I know there will never be a complete record due to all the private sales that go unreported).
So you need to do your own research and know what kind of investor you are, what percentage of purchases would be for shorter term trades, what are longer term holds and what are pure speculative buys.
Best of luck - I'd love to hear about your insights into this developing market as I am interested myself.