Right suggestion only.
Have you checked the Indian subforum here?
Please spend some time reading up on the various discussions there and make up your mind. No government controls Bitcoin so it is neither legal nor illegal. But in most instances, like in the case of US, Bitcoin and cryptocurrencies are tagged as 'virtual property' and are taxed accordingly.
In India however, the government is just waking up to the idea of taxing Bitcoin investments. Recently the IT department sent a bunch of HNI bitcoin investors and traders a notice where all the details of their portfolio and so on. But that was a fruitless effort.
I suggest you follow the Indian subforum closely and read the posts there.