Nothing! According to the law of India the Copyright in your work belongs to you by reason of the fact that you created or "made" that work. In some other countries the law requires that you shall conform to certain requirements such as registration and the payment of a fee, but in India the recognition of your copyright is automatic as soon as your work has been "made" and that means as soon as it has been reduced to writing or some other material form.
There is no Copyright as long as it is just an idea in your head, for Copyright starts only when that idea has been reproduced in some tangible, perceptible form like a manuscript or a record.
There is, however, an important condition: Your work must be original, and not an unauthorized copy of someone else’s copyright work.
A word of caution: While you may feel convinced about your Copyright in a certain work, you may have some difficulty in proving your right if someone else suddenly alleges that he wrote that work before you did. In that case proof of the date of creation becomes all-important, and you would be well advised to make timely arrangements for such a contingency. In this connection IPRS provides a special service for its members. If you register your work with IPRS as soon as it is made, we would, in case of any dispute, be prepared to certify the date of such registration, and that would place on the other party the onus to prove that he wrote the work before that date. For a very modest fee IPRS will furnish you with a Certificate of Registration which could be used as evidence in any dispute. However, you are not obliged to make use of IPRS in this connection.
You could lodge a copy of your work with anyone else – for instance your bank or your attorney – as soon as you have produced it, and ask them to give evidence on your behalf in any subsequent dispute about authorship.