The plain answer
Corporate bonds and NCDs are debt securities: you lend money to the issuer, receive interest on schedule, and get the principal back at maturity. They are held in your demat account like shares, trade on the exchange like shares, and their interest payments go to your bank account like dividends. The same demat account, the same CAS, one more kind of holding.
The three numbers on every bond: the face value, usually ₹1,000 for corporate bonds, the coupon paid on schedule, and the maturity date when the principal returns. In the demat account a bond is one more ISIN beside your shares, with two cash flows you will see in the bank account, never in the demat ledger.
On a broker screen the reading order is: coupon, maturity, rating and price. The coupon tells you the cash schedule, the maturity tells you how long the principal is out, the rating tells you the credit risk, and the price tells you the yield the market currently assigns to that combination. All four sit on the same order screen, which is the difference between reading a bond and reading a share: the share shows a price and a business, the bond shows a schedule and a promise.
What bonds and NCDs are
A bond is a loan you make to the issuer, documented as a security with a face value, a coupon (the interest rate) and a maturity date. The coupon is usually paid annually or half-yearly, and the principal returns at maturity. Between issue and maturity the bond has a market price that moves with interest rates and with the issuer credit, which is the difference between the fixed coupon and the moving price.
Credit risk is the central concept. A bond rating, from AAA down, is the market shorthand for the probability you get paid. Secured bonds carry a charge on specific assets of the issuer; unsecured bonds carry only the issuer promise. The coupon is higher when the rating is lower, which is the entire bond risk-return trade in one sentence.
For a first-time investor, most public issues of NCDs arrive through the same ASBA application flow as IPOs: you apply in the broker app, the amount is blocked under a UPI mandate, and allotted bonds credit to the demat account. The IPO page walks that flow step by step, and the secondary market is where the bonds trade after listing.
Within the family the variants differ on one axis each. Secured versus unsecured is the asset-backing question. Zero-coupon bonds pay no running interest and issue at a discount, the difference being the return. Floating-rate bonds reset the coupon against a benchmark instead of fixing it. Perpetual issues have no fixed maturity at all, with calls at the issuer option, and their coupons sit higher as the price of that. Every variant settles into the same demat account; the variants differ in what the schedule says, not in where the ISIN lives.
Where the instruments come from completes the map: public issues of NCDs arrive through the ASBA flow, private placements go to institutions in bulk, and the secondary market relists what already exists. The retail investor meets the first and the third; the second stays institutional, and the demat account is the destination for every route.
NCD vs bond: the naming question
NCD stands for non-convertible debenture: a bond that cannot convert into shares, which describes nearly every retail bond in the market. Convertible variants exist, but retail issuances are overwhelmingly non-convertible, so in retail usage the two words describe the same instrument.
The one distinction worth keeping: debenture is the Indian statutory word, bond is the market word, and both describe debt securities that pay interest and return principal at maturity. The mechanics in the demat account are identical, and the CAS lists them under the same debt heading, which is why this page uses the two words interchangeably.
The convertible siblings complete the picture: partly convertible debentures convert a portion into shares on schedule, and fully convertible ones convert entirely. Both carry equity upside and therefore behave like hybrids, which is precisely why the retail issuance market standardised on the non-convertible version: a clean debt instrument with a schedule and no embedded option. The name NCD is the market telling you which end of the family you are looking at.
One boundary worth stating: everything held in the demat account is, by definition, a listed or depository-eligible security. Unlisted debt exists, issued privately and held outside the demat system, and it is not the market this page describes. The demat account is the home of the listed bond market, which is the market a retail order can reach.
How they sit in the demat
| Aspect | How it works for bonds |
|---|---|
| Holding | Credited to the demat account under the bond ISIN |
| Interest | Paid to the linked bank account on the coupon dates |
| Maturity | Principal paid to the bank account at maturity |
| Statement | Listed in the CAS with your shares and funds |
The holding row deserves the emphasis: the bond credits to the demat account under its own ISIN, and the CAS lists it with the issuer name, the coupon, the face value and the maturity date. The demat account is the record of ownership; the bank account is the destination of every cash flow. The two roles never mix, exactly as with shares and dividends.
Corporate actions reach bonds too, with one debt-specific addition. Interest payments run on record dates fixed by the issuer, and the demat record on that date determines who receives the coupon, so a sale just before the record date passes the next coupon to the buyer. Issuers also exercise partial redemptions, returning principal in slices on schedule, and early redemption options where the terms provide them. Each event lands as a corporate action notice in the demat ledger, and the money lands in the bank.
Buying and selling
Listed bonds trade on the exchange during market hours: an order, a trade at the prevailing price, and T+1 settlement into or out of the demat account. Selling carries the same DP charge as any demat debit, and brokerage follows the standard schedule. The mechanics are identical to shares; the market depth is not.
The practical difference is liquidity: some bonds trade thinly, with wider spreads, and finding a price may take longer than a share order does. For an issue you plan to hold to maturity, the secondary market matters only if your plan changes, which is why the common discipline is to buy only the maturity you can hold.
New issues follow the IPO plumbing: NCD public issues use the ASBA and UPI mandate flow, with allotment into the demat account on the same schedule the equity issues run. The application page on this site covers the flow, and the only bond-specific input is the coupon and maturity instead of a price band.
Reading the quoted price takes one adjustment. Bond screens quote a clean price, typically per ₹100 of face value, and the accrued interest since the last coupon settles separately on top of it. The amount your account pays is the clean price plus the accrued coupon, which is why a screen showing 100 can still produce a settlement above the simple multiplication of price times quantity. The broker order confirmation shows both legs, and that breakdown is the part worth reading.
Order sizes have their own convention: many listed bonds trade with minimum quantities or board lots that differ from the share pattern, and the broker order screen enforces them. A bond quoted at 102 with a 10-bond minimum is a ₹10,200 order before accrued interest, not a ₹102 one. The minimum quantity is the first field to read after the price.
Interest: bank, TDS and tax
The pattern repeats from the dividend page: cash never sits in the demat account. Coupon payments go to your linked bank account through the registrar, using the demat record to establish your holding on the record date. The demat account shows the bond and the corporate action notice; the bank statement shows the money. Missing interest starts with the bank mandate, not the demat ledger.
TDS applies on the coupons of listed debentures paid to residents: 10% under Section 193 once the year interest crosses the threshold, currently ₹10,000 a financial year after the 2025 increase from ₹5,000, and 20% if the PAN is not linked. The deduction lands in Form 26AS and offsets your final tax, so it is a prepayment, not an extra charge.
The coupon itself is income: the full interest is taxable at your slab whether or not TDS was applied and whether or not you reinvest it. Reading the 10% deduction as the final tax rate is the mistake the Form 26AS entry exists to correct, because the real rate is whatever your slab says.
One opt-out exists at the mechanics level: if your total income sits below the taxable limit, Form 15G (or 15H for seniors) filed with the issuer or registrar stops the deduction at source. The form is a declaration about your income, not about the bond, and filing it wrongly carries its own consequences. For everyone above the limit the TDS simply runs, and the Form 26AS entry becomes the credit trail at filing time.
One compounding note closes the tax picture: the coupon that lands in the bank is yours to keep, spend or reinvest, and the tax on it does not depend on which you choose. A bond that pays ₹13,875 a year pays it whether the money stays in savings, buys more bonds or pays a bill, and the slab tax on that ₹13,875 is the same in every case. The reinvestment builds the return; it does not defer the tax.
Coupon frequency is set at issue: some bonds pay annually, others half-yearly or quarterly, and the frequency changes the cash timing without changing the annual coupon. The same 9.25% coupon pays ₹9,250 once, ₹4,625 twice or ₹2,312.50 four times per bond, and the offer document states which. The demat record date works the same in every case.
A worked example
You buy 150 NCDs of a five-year, 9.25% coupon issue at face value ₹1,000 each, so ₹1,50,000. The coupon pays ₹13,875 a year, usually in two half-yearly instalments, to the linked bank account.
TDS arithmetic: the year interest of ₹13,875 crosses the ₹10,000 threshold, so the issuer withholds 10%, ₹1,387.50, and ₹12,487.50 lands in the bank. The withheld amount sits in your Form 26AS and offsets your final tax on the ₹13,875, which is taxable at your slab.
Price arithmetic: if rates rise and you must sell before maturity, the price falls below ₹1,000. Selling all 150 at ₹980 recovers ₹1,47,000 against ₹1,50,000 paid, a ₹3,000 principal loss that partly offsets the coupons collected. Holding to maturity returns the full ₹1,50,000. The comparison is the entire direct-bond decision in one example, and the common discipline it produces is to buy only the maturity you can hold.
The reverse scenario completes the picture. You buy the same bond in the secondary market at ₹980 when rates have risen, collect two years of ₹9,250 coupons, and sell at ₹1,010 after rates fall back. The ₹30 price gain per bond plus the coupons is the total return, and the price leg works for you this time. The lesson is symmetric with the earlier example: the price moves, the coupons schedule, and only the combination over your holding period is the return.
Credit risk in plain terms
A rating is a probability statement, not a guarantee. The scale runs from AAA down to D, and each step down buys a higher coupon in exchange for a higher chance that interest, principal or both get delayed or missed. The gap between a corporate bond yield and a comparable G-Sec yield is the spread, and the spread is the market putting a rupee price on that probability at that moment.
When a default happens, the security question becomes the whole question: secured bondholders hold a charge on specific assets and stand in a different queue from unsecured holders. The demat account keeps holding the ISIN through the process, and recovery, if any, runs through the resolution mechanism under the law. That is why the issuer, the rating and the security rank above the coupon in the reading order on a bond screen.
Bonds vs deposits vs debt funds
The three structures hold debt three ways. A bank deposit has no market price, a fixed term and deposit insurance up to the prescribed limit. A debt mutual fund pools bonds, prices daily at NAV and charges an expense ratio, with no defined maturity unless the fund design provides one. A direct bond fixes the coupon, the maturity and the credit exposure to one issuer, and prices on the exchange in between.
The choice among them is a cash-flow and risk question, not a ranking: deposits for guaranteed liquidity, funds for diversification, direct bonds for a specific maturity held to term. Each structure settles differently in the demat: deposits never touch it, fund units may sit in a folio, and direct bonds always sit in the demat. DematOpen is an Authorized Person of Upstox and does not provide investment advice.
The tax administration mirrors the structure question: bank deposit interest carries TDS under its own threshold and section, bond coupons carry the debenture TDS covered above, and fund returns run through the fund structure. Every stream is slab income in the end, and Form 26AS is where the deductions from all three reconcile, which is why the filing routine treats them as one family.
What people usually get wrong
Bonds are safe, so the returns are fixed
The coupon is fixed, but the market price moves with interest rates, and issuers can default. Bond investing prices credit risk, not just time.
Interest accumulates inside the demat account
Cash goes to the bank account on the coupon dates. The demat account holds the security, never the cash.
Bonds sell as easily as shares
The mechanics match, but liquidity varies by bond. Thinly traded bonds can be hard to sell at the quoted price, which is the reason holding to maturity is the common discipline.
The coupon rate is my return
The coupon is the cash schedule. Your actual return includes the price you paid: buy above face and the yield sits below the coupon, buy below face and it sits above. Yield to maturity is the number that reconciles the two.
Questions people ask
No. Interest is cash and goes to your linked bank account through the registrar, exactly like share dividends. The demat account holds the bond and establishes your entitlement on the record date.
Yes, on the exchange, like a share. Bonds listed on NSE or BSE trade during market hours, settle on T+1 into and out of the demat account, and carry the same DP charge on selling. Liquidity varies by bond, which is the practical difference from selling shares.
An NCD, non-convertible debenture, is a bond that cannot convert into shares. In retail usage the terms overlap heavily, and both describe debt securities that pay interest and return principal at maturity. The mechanics in the demat account are identical.
No. The same demat account holds shares, funds, bonds and government securities together. The ISIN distinguishes each security, and the CAS lists them all in one statement.
Yes. Interest on listed debentures paid to residents attracts TDS at 10% once the year interest crosses the threshold, currently ₹10,000 a financial year after the 2025 increase, and 20% if the PAN is not linked. The deduction appears in Form 26AS and offsets your final tax.
Default is a credit event, not a technical glitch: interest payments stop and recovery runs through the bond security, rating and the resolution process under the law. The demat account continues to hold the security through the process, which is why the issuer credit quality is the actual risk analysis of direct bonds.