Corporate Bonds vs Debentures in India: Key Differences
Ask ten Indian investors to define a "debenture" versus a "corporate bond," and you'll likely get ten different answers. Most people use these terms interchangeably at the dinner table, but under the Companies Act, 2013 and SEBI regulations, they carry distinct legal and practical weight.
That distinction isn't academic. It affects how safe your principal is, what coupon rate you earn, how much tax you pay, and where you stand in the recovery queue if an issuer defaults.
India's corporate bond market has grown, with outstanding corporate debt reaching ₹51.58 lakh crore by December 2024, up from ₹43.14 lakh crore in March 2023.
As more retail and HNI investors look beyond equities and fixed deposits, these differences matter for building a resilient fixed-income portfolio.
This article breaks down what actually separates a corporate bond from a debenture in India, and where each fits into your portfolio.
Key Takeaways
- Corporate bonds are usually asset-backed; debentures depend on credit rating.
- Debentures offer higher coupons to offset the added risk of no collateral.
- Convertible or non-convertible, both instruments fall under SEBI's NCS Regulations.
- Match the instrument to your risk appetite, not just the label
- Always check CRISIL, ICRA, or CARE ratings before committing capital
Corporate Bonds vs Debentures: Quick Comparison
| Factor | Corporate Bonds | Debentures |
|---|---|---|
| Security/Collateral | Usually secured by company assets or receivables | Typically unsecured, backed only by issuer's creditworthiness |
| Risk level | Lower, due to asset backing and recovery priority | Higher, since repayment depends on issuer's financial health |
| Interest rate (coupon) | Generally lower, reflecting lower risk | Generally higher, to compensate for added risk |
| Tenure | Often used for long-term financing needs | Ranges from medium to long-term, sometimes tied to specific projects |
| Repayment priority | Secured bondholders paid before unsecured creditors | Unsecured debenture holders rank below secured bondholders |
One caveat worth flagging: under Section 2(30) of the Companies Act, 2013, the term "debenture" legally includes bonds. SEBI's own investor guide confirms the two terms are commonly used interchangeably in India. So don't rely on the label on an offer document alone — check the actual security structure and charge instead.
What is a Corporate Bond?
A corporate bond is a debt instrument that Indian companies, NBFCs, and PSUs issue to raise capital from investors. Structurally, it works like a promissory note: you lend money to the issuer, and in return, you receive periodic coupon payments plus your principal back at maturity.
In India, corporate bonds fall under SEBI's Issue and Listing of Non-Convertible Securities (NCS) Regulations. When these bonds are secured, the issuer creates a legal charge over specific assets, typically receivables, property, or plant and machinery, giving bondholders a documented claim if the company defaults.
Why investors buy them:
- Predictable income through fixed or floating coupons
- Diversification beyond equity and mutual fund holdings
- Comparatively lower default risk when the issuer carries a high credit rating
Types of Corporate Bonds Available in India
Indian investors can access several structures:
- Fixed-rate bonds – coupon stays constant through the tenure
- Floating-rate bonds – coupon resets periodically against a benchmark
- Zero-coupon bonds – no periodic interest; issued at a discount, redeemed at face value
- Callable bonds – issuer can redeem early, usually when rates fall
SEBI's data shows the pace of this market's growth: outstanding corporate bonds stood at ₹47.29 lakh crore in March 2024, climbing to ₹51.58 lakh crore by December 2024. That's a meaningful jump in under a year, reflecting growing corporate reliance on debt markets alongside bank credit.
Use Cases of Corporate Bonds
Corporate bonds typically sit in a portfolio for capital preservation and steady income, complementing equity exposure rather than competing with it. They work well for:
- Investors nearing retirement who need predictable cash flows
- HNIs looking to park part of their wealth in lower-volatility instruments
- NRIs seeking rupee-denominated fixed income backed by rated issuers
You'll commonly find them issued by NBFCs, infrastructure companies, and PSU-backed entities in power and financial services. These sectors need long-term capital and often carry higher ratings due to asset backing or government linkage.
CRISIL's default studies found AAA-rated instruments recorded a one-year average default rate of just 0.03% across FY20-FY22. That's largely why top-rated corporate bonds get treated as core holdings rather than tactical bets.
What is a Debenture?
Under Indian law, a debenture is a debt instrument companies issue to raise funds for expansion, working capital, or specific projects. Unlike corporate bonds, debentures may or may not carry asset backing, and in India, many public NCD issues are unsecured or only partially secured.
Certain debenture issuances require a Debenture Redemption Reserve (DRR), a reserve fund meant to protect repayment. But this protection is thinner than it sounds.
A 2019 MCA amendment exempted listed companies, RBI-registered NBFCs, and NHB-registered housing finance companies from maintaining a DRR entirely. For other unlisted companies, the requirement dropped from 25% to just 10% of outstanding debentures. DRR absence doesn't automatically signal issuer weakness, but its presence shouldn't be mistaken for a safety net either.
Why investors consider debentures:
- Higher yield potential to offset the lack of collateral
- Convertible debentures allow conversion into equity shares, offering upside if the company performs well
- Access to niche sectors like housing finance and NBFC lending that don't always issue plain bonds
Common Debenture Structures
- Secured vs. unsecured – secured debentures carry an asset charge; unsecured ones rely purely on issuer strength
- Convertible vs. non-convertible (NCDs) – convertible debentures become equity later; NCDs remain pure debt
- Redeemable vs. irredeemable – most Indian NCDs are redeemable with a fixed maturity
Beyond these structural variations, public NCD volumes in India have swung considerably. SEBI data shows public NCD issue proceeds rose from ₹9,220.64 crore in FY23 to ₹19,167.88 crore in FY24, before falling to ₹8,149.04 crore in FY25. That volatility tells you retail NCD supply isn't steady year on year — issuance tends to cluster around specific NBFC or housing finance funding cycles.
Use Cases of Debentures
Retail investors typically encounter debentures through public NCD issues from NBFCs and housing finance companies, since these issuers regularly need to diversify funding beyond bank loans.
Take Nido Home Finance's June 2024 secured NCD issue: it offered effective yields between 9.50% and 10.75%, well above the 6.50%-7.00% that top banks like SBI, HDFC Bank, and ICICI Bank offered on five-year fixed deposits around the same period.
The catch: Nido's issue carried a CRISIL A+ rating on negative watch, a meaningfully lower credit quality than AAA bank paper. That coupon gap exists precisely because the risk isn't comparable to a bank FD.
Which Is Better: Corporate Bonds or Debentures?
There's no universal winner here. The right choice comes down to four factors:
- Risk appetite – can you tolerate potential delays or partial recovery if the issuer struggles?
- Need for collateral protection – does your goal require asset-backed security, or can you accept unsecured exposure for better yield?
- Investment horizon – shorter horizons favour liquid, higher-rated paper; longer horizons can absorb some credit risk.
- Reliance on credit rating – are you comfortable evaluating CRISIL, ICRA, or CARE ratings yourself, or do you need guidance?
Corporate bonds suit conservative investors who prioritise capital safety and steady income, particularly those nearing retirement or anyone who wants predictable cash flow without second-guessing issuer health every quarter.
Debentures, especially rated NCDs, suit investors comfortable with higher risk in exchange for potentially higher returns, provided they've actually verified the credit rating and issuer track record rather than chasing the headline coupon.
This is where structured, research-backed screening matters. Cambridge Wealth's research-led evaluation applies a proprietary 108-point research framework, combining quantitative and qualitative factors, to evaluate creditworthiness, yield potential and portfolio fit before a debt instrument is distributed to investors.
For debt allocations specifically, that means checking rating trends, security cover, and issuer sector exposure, rather than treating "secured" or "AAA" as a box-ticking exercise.
In practice, most well-constructed fixed-income portfolios don't pick one instrument exclusively. They blend secured corporate bonds for stability with select high-quality debentures for yield, weighing the two against the investor's broader goals instead of treating this as an either-or decision.
Conclusion
Choosing between corporate bonds and debentures isn't about crowning a single winner. Each carries a distinct risk-return profile, and the right choice depends on whether you're prioritising capital preservation, chasing higher yield, or building a blend of both.
What matters more than the label is the homework behind it: the security structure, the credit rating, the issuer's track record, and how the instrument fits your broader financial goals. Investors who check these details before investing, rather than after, are the ones who avoid unpleasant surprises when an issuer hits a rough patch. This due diligence mirrors the 108-point research framework Cambridge Wealth applies before any fixed-income product is distributed.
As India's corporate debt market keeps expanding past ₹51 lakh crore in outstanding issuances, skipping that homework only gets costlier every year.
Frequently Asked Questions
Which is riskier: corporate bonds or debentures?
Debentures, especially unsecured ones, are generally riskier than secured corporate bonds since they lack collateral backing. Repayment depends solely on the issuer's financial health and cash flows.
Are corporate bonds better than fixed deposits (FDs)?
Corporate bonds can offer higher returns than bank FDs, but they carry credit and liquidity risk that FDs don't. They suit investors willing to accept some risk for better yield potential.
What is the difference between secured and unsecured debentures?
A charge on specific company assets backs secured debentures, giving holders recovery rights in default. Unsecured debentures rely purely on the issuer's financial strength, with no asset claim.
Can debentures be converted into shares?
Yes. Convertible debentures let holders exchange their debt for equity shares after a specified period, offering potential upside if the company's stock performs well.
How do I check the credit rating of a bond or debenture before investing?
The issuer's offer document or prospectus discloses ratings from CRISIL, ICRA, and CARE. Always check the current rating and outlook, not just the rating at issuance.
Are corporate bonds and debentures taxed differently in India?
Interest income from both is taxed at your income slab rate. Capital gains treatment depends on holding period and listing status, with unlisted bonds now taxed as short-term gains under Section 50AA regardless of how long they're held.
