It is NOT legal to release cover songs in India and across the world without the permission of the copyright holder. In India, most of the times the copyright is held with a label. You may have seen websites like easy song licensing that claim to provide you with a license for covers. Please note this license is ONLY applicable for release in America and not worldwide. If you’re caught releasing someone else’s copyright without permission you can be blacklisted by music streaming platforms. No distributor can help you secure a license for India and outside America.
