What an ISBN is, and what it is not
An ISBN is the International Standard Book Number: thirteen digits that identify one specific edition of one specific book from one specific publisher. Retailers order by it, libraries catalogue by it, distributors track stock by it, and sales are reported against it.
It is a serial number, nothing more. It confers no copyright, no ownership and no protection. Registering an ISBN does not stop anyone copying your book — that is what copyright does, and copyright exists whether or not you ever touch a form.
It is also not legally compulsory in India. You may publish and sell a book without one. What you cannot easily do without one is get into the book trade's plumbing — bookshops, libraries, wholesalers and most retail listings all expect it.
Who issues it in India
The national ISBN agency for India is the Raja Rammohun Roy National Agency for ISBN, which sits under the Ministry of Education. Applications go through its portal at isbn.gov.in.
You apply as the publisher. If you are self-publishing, that publisher is you — which is the point, and the reason a free ISBN from a retail platform is not the same thing.
What it costs
ISBNs from the national agency are, at the time of writing, issued without charge. India is unusual in this; in most countries an ISBN costs real money, and in the United Kingdom or the United States a block of them runs into tens of thousands of rupees.
Treat 'free' as a current fact rather than a permanent one. The agency's own wording hedges it, and a fee could be introduced. Check the portal before you build a plan around it.
What you need to apply
The exact list depends on whether you are registering as an individual author-publisher or as a company, and the portal is the authority on this. In practice, expect to need:
- PAN of the applicant — the author, if you are publishing under your own name.
- Proof of address.
- The book's full details: final title, subtitle, author name as it will appear, language, subject, and the format you are registering.
- For a publishing house, the registration documents for the business.
How long it takes
The agency does not publish a service-level commitment, so any number you read is somebody's experience rather than a promise. In practice allocations have commonly come through within one to three weeks of a complete application.
Plan on the slower end. An incomplete application or a query on your documents resets the clock, and the ISBN sits upstream of the cover design, the barcode and every retail listing you want to open.
One book, several ISBNs
This surprises people. An ISBN identifies a format, not a work. The same novel published as a paperback, a hardcover, an ebook and an audiobook is four separate products and needs four separate ISBNs.
It also goes further than format. A second edition with new content needs its own number. A translation needs its own number. A large-print edition needs its own number. What does not need a new one is a reprint of the same edition with typos corrected.
Apply for the whole set at once if you know you want all of them. It is one process rather than four, and it saves you discovering three weeks before launch that the ebook has no number.
The free ISBN from Amazon, and what it costs you
Kindle Direct Publishing will give you an ISBN for a paperback at no charge, and it is tempting. There are two consequences, and Amazon states both plainly in its own help pages.
The first: a free KDP ISBN can only be used on KDP. You cannot take that number and print the same book with a local printer, list it on Flipkart, or sell it to a distributor. It is locked to the platform that gave it to you.
The second: the imprint on your book will read 'Independently published'. Not your name, not your publishing house. That line travels with the book into every catalogue and library record there is.
Your own ISBN from the national agency has neither problem. It is yours, it works everywhere, and the publisher of record is whoever you say it is.
Common mistakes
- Applying before the title is final, then needing a second number.
- Registering one ISBN and using it on both the paperback and the ebook. Retailers will catch this, and the sales data becomes meaningless.
- Taking the free platform ISBN to save a step, then wanting to print locally a year later.
- Leaving it until the cover is at the printer. The barcode on the back cover encodes the ISBN — no number, no barcode, no cover.
- Assuming the ISBN protects the book. It does not. See the copyright guide.