Maybe doing your research before buying something online same as with cash payments is a good idea. I'd pick a vendor who accepts crypto besides fiat, I assure you there are lots of them.
The point is that there might be no public info. If you can research using public info, then government could research too of the places which delivers goods for crypto and could order one for themselves and track the package through courier.
You are taking this too seriously. Do you really think that the Indian government will start investigating every incoming package to the country if the webshop it originated from accepts crypto? In a country if 1.3B+ people?