While it is true they are trying to do it, it's not anything new as Delhi has for decades tried to impose Hindi on all states and the southern ones don't take it well. That said, I don't think this can result in balkanization of India as generally India is way more united in-spite of issues like Delhi seen as having way too much control over the states (which is true in my opinion).
Also, IMO, balkanization of the India sub-continent might not be the worst thing to happen. I've seen how proud and patriotic Indian hate this idea but IMO it could be actually quite good for the whole region. I'd actually like to a more federated Indian Union that could eventually make way for Bangaladesh, Sri Lanka, Pakistan and Nepal to become member states. Something like the EU perhaps. While I don't think anything like this has any real chance of happening, it would be a sure shot way to bringing peace to the whole sub-continent IMHO.
Also, IMO, balkanization of the India sub-continent might not be the worst thing to happen. I've seen how proud and patriotic Indian hate this idea but IMO it could be actually quite good for the whole region. I'd actually like to a more federated Indian Union that could eventually make way for Bangaladesh, Sri Lanka, Pakistan and Nepal to become member states. Something like the EU perhaps. While I don't think anything like this has any real chance of happening, it would be a sure shot way to bringing peace to the whole sub-continent IMHO.