People use "bond" and "NCD" interchangeably in India, and for most purposes that is fine. They are the same kind of instrument. But the differences that do exist are not cosmetic. They decide where you stand if the issuer runs into trouble, which is the only moment the distinction matters.
What a debenture is
Indian company law uses the word debenture for a debt instrument issued by a company. A bond and a debenture are both promises to pay interest and repay principal. "Debenture" is simply the term the Companies Act reaches for. Abroad, the word sometimes implies an unsecured instrument, but Indian usage carries no such implication. An Indian debenture can be secured or unsecured, and the offer document tells you which.
Non-convertible means the instrument stays debt for its whole life. It will never turn into equity. A convertible debenture gives the holder or the issuer the right to swap the debt for shares, usually on set terms and dates. That option has value, and it changes the risk profile completely, so convertible and non-convertible instruments get analysed differently. When you see "NCD", the "NC" is telling you there is no equity conversion to think about. It is a pure fixed-income instrument.
So a listed NCD is a corporate bond. The extra letters describe two things about it: it is a debenture under Indian law, and it does not convert.
Where the real differences sit
The distinctions that affect your outcome are not "bond versus NCD". They sit within the category.
| Distinction | Safer side | Why it matters |
|---|---|---|
| Secured vs unsecured | Secured | Specific assets are charged to the debenture trustee; holders claim them ahead of unsecured creditors |
| Senior vs subordinated | Senior | Senior debt is paid in full before subordinated debt gets anything in a wind-up |
| Listed vs unlisted | Listed | Listed NCDs trade on the exchanges and settle in demat; unlisted ones are hard to exit |
| Dated vs perpetual | Dated | A dated bond repays on a fixed date; a perpetual AT1 bond can be written to zero while the bank keeps running |
Secured is safer than unsecured, but only to the extent the charged assets are worth something when they are needed, and they are usually needed at the worst possible time. Banks and NBFCs issue subordinated NCDs to count towards regulatory capital, and those yield more precisely because holders get paid later, after senior creditors are made whole. A high coupon on a bank NCD is often subordination showing up in the price rather than generosity.
The comparison that actually matters
When you look at two instruments, the label tells you almost nothing. The offer document or the listing tells you what you need:
- Is it secured, and by what?
- Is it senior or subordinated?
- Is there a maturity date, or is it perpetual with a call?
- What does the credit rating say, and from which agency?
- What is the yield to maturity at today's price, not the coupon?
Two NCDs from the same issuer can differ on every one of these and offer very different risk for similar-looking coupons. Analysis happens at the ISIN level, never the company level, a point covered in how to read a bond listing.
Tax treats them identically
There is no tax difference between something called a "bond" and something called an "NCD". Interest is taxed at your slab rate as Income from Other Sources, and a sale before maturity produces a capital gain or loss on its own rules. Tax on corporate bonds and NCDs covers the detail, and it applies to both names equally.
The takeaway
Stop worrying about whether the thing is called a bond or an NCD. For a listed instrument, it is the same product. Spend that attention instead on whether it is secured, where it ranks, whether it matures, and what the rating and the yield are telling you. Those are the things that determine whether you get paid back.