Debt Investments: FDs, Bonds and Beyond

Debt investments are products where you lend money to a borrower, like a bank, the government, or a company, in exchange for interest and the return of your principal at the end. You are the lender, not the owner, and that one fact shapes every other thing about how debt works.

Most Indians grow up with one debt product: the bank fixed deposit (FD). The full debt menu is wider than that, with very different risk, return, and tax characters on each rung. Knowing where each one sits is the difference between a working portfolio and an accidental one.

What debt investing really means

When you put a lakh into a bank FD, you are not investing in the bank. You are lending it a lakh, and the bank agrees to return it after a fixed period with a fixed rate of interest on top.

The same arrangement holds across the entire debt menu. A government bond is you lending to the Government of India. A corporate bond is you lending to a company.

A debt mutual fund is a pool of such loans put together by a fund manager — and crucially, that pool is valued at a daily Net Asset Value (NAV), so the price moves every day even though the underlying paper is debt. PPF (Public Provident Fund) and NSC (National Savings Certificate) are government-backed small savings schemes — economically, you are lending to the government, dressed up as a small savings product.

The family resemblance is simple: you are lending money. The interest rate or coupon is usually agreed upfront, but the actual outcome still depends on product rules, the borrower's repayment, and — for tradable bonds and funds — what interest rates do in between.

An FD behaves differently from a listed bond, and a listed bond behaves differently from a debt mutual fund. Held to maturity, an FD or an individual bond pays back the principal unless the borrower defaults. Sold before maturity, or held inside a fund whose NAV moves daily, the picture is more honest than "guaranteed."

The ladder of Indian debt options

There are five main rungs of debt available to an Indian retail investor, arranged here from safest and lowest yielding to riskier and higher yielding.

1. Bank fixed deposits and recurring deposits. The default Indian product. Open one through net banking in three taps, pick a tenure between seven days and ten years, lock in a rate broadly in the 6 to 7.5 percent range in recent quarters. Deposits with a scheduled bank are insured by DICGC up to ₹5 lakh per depositor per bank, with principal and interest combined inside that limit and deposits aggregated across branches in the same right and capacity. Interest is fully taxed at your slab rate.

2. Small savings schemes. PPF, NSC, Sukanya Samriddhi Account (SSA), Senior Citizen Savings Scheme (SCSS), Post Office Monthly Income Scheme. These are government-backed schemes run through India Post and authorised banks; rates are reviewed every quarter and have ranged roughly between 7 and 8.2 percent across these schemes in recent quarters (National Savings Institute). PPF is the standout because the interest is fully tax-free under section 10. The catch is long lock-ins — fifteen years for PPF, five for NSC, and partial-exit rules even when the door is open.

3. Government bonds and T-bills. Direct loans to the Government of India through the RBI Retail Direct platform, launched in November 2021. The portal opens a Retail Direct Gilt (RDG) account, lets you bid in primary auctions, and offers a secondary market — all without platform fees. Recent ten-year G-Sec yields have hovered roughly in the 6.8 to 7.3 percent range (check the current figure before you act). There is effectively no credit risk on sovereign paper. (For yield and price basics in plain English, the RBI G-Sec primer is a good first read.)

4. Debt mutual funds. Pools that own a mix of bonds, T-bills, and corporate paper. Liquid funds park money for a few days, short-duration funds for a year or two, long-duration funds for ten years and more. Returns broadly track the underlying paper but are not guaranteed: the NAV moves every day with interest rates and credit news, so you can lose money even in a debt fund if you sell at the wrong time. (Liquid and overnight funds move the least; long-duration funds move the most.)

5. Corporate bonds and NCDs. Loans to companies like Tata Capital, Bajaj Finance, Indian Railway Finance Corporation (IRFC), or smaller NBFCs. Yields are juicier, often 8 to 11 percent, because the credit risk is real. AAA-rated paper is safer than AA, and anything below A is for people who know exactly what they are doing. Listed bonds also have a bid-ask spread (see the glossary) — selling in a hurry usually costs more than you expect.

What debt actually pays in India

Returns on Indian debt are narrower than equity returns, but the gap between the bottom and top of the ladder is still meaningful.

Two things matter more than the headline yield. The first is tax. Interest on bank FDs, RDs, NSC, and most bonds is added to your income and taxed at your slab rate, which is often the worst possible tax treatment. A 7.5 percent FD in the 30 percent slab pays you about 5.25 percent in hand. PPF interest is tax-free under section 10, which is what makes it the quiet star of the table.

Debt mutual funds got a quieter but significant change in 2023: gains on specified debt-oriented mutual funds acquired on or after 1 April 2023 are taxed at your slab rate regardless of how long you hold them (per the Section 50AA framework; the AMFI tax regime page has the working version). The old indexation benefit on long-term debt fund gains is largely gone.

The second factor is inflation, which in India runs at 5 to 6 percent in normal years. After tax and inflation, plain debt is mostly a wealth-preservation tool, not a wealth-growth tool. That is the deal you are making — you give up upside in exchange for predictability.

And do not assume "government" means "tax-free." PPF interest is tax-free; most current government and PSU bond interest is fully taxable. A handful of older PSU tax-free bonds still trade on the exchange, but anything new — including instruments like the RBI Floating Rate Savings Bonds (PIB notification) — typically pays taxable interest.

FD vs bond: the honest comparison

FDs and bonds are first cousins, not the same thing. Most Indians treat them interchangeably and miss the differences that actually matter.

The bond's tradeability is its real feature. If you need the money in year four of a ten-year bond, you sell it on the exchange and someone else takes over the lending. The FD has no such exit, only a penalty.

The flip side is that bond prices move every day. When the RBI cuts rates, existing bonds with higher coupons become more valuable, and their market price rises. When the RBI hikes rates, the opposite happens and prices fall.

Held to maturity, you get the agreed return. Sold in between, you might get more or less.

This rate-sensitivity is why short-duration and liquid funds are recommended for most retail investors. Their NAV barely moves with the rate cycle because the underlying paper rolls over quickly. Long-duration funds are powerful in a falling-rate cycle and painful in a rising one.

Which debt option fits your need?

Five quick scenarios. The point is not to score full marks, it is to feel which products fit which jobs before you put real money in.

How to actually buy each one

The mechanics are quietly different for each rung, and a beginner usually trips on the second or third one.

FD or RD. Two taps inside your bank's mobile app. Pick tenure, amount, payout option, done. Small finance banks sometimes offer headline rates around 8 percent or higher; the same DICGC ₹5 lakh cover applies, but only as long as the bank is a DICGC-registered scheduled bank.

PPF or NSC. Open a PPF (Public Provident Fund) through any major bank or India Post. Contribute a minimum of ₹500 and up to ₹1.5 lakh a year, claim a section 80C deduction, get tax-free interest at maturity in year 15 (NSI). NSC works similarly but locks for 5 years and its interest is taxable.

Government bonds. Open a free RBI Retail Direct account, which sets up an RDG (Retail Direct Gilt) account in your name. From there you can bid in scheduled primary auctions for T-bills (short-term, under 1 year) and G-Secs (longer dated), or use the platform's secondary market. You can also buy listed G-Secs through a normal broking account, like a stock.

Debt mutual funds. Through any platform that sells mutual funds, or directly through the AMC site. Start with a liquid or overnight fund for parking money, or a short-duration fund for a 1–3 year goal. Avoid credit-risk funds and long-duration / gilt funds until you understand the trade-off between yield and NAV swings.

Corporate bonds and NCDs. Through your broker for listed bonds, and through public issues for new NCDs (Non-Convertible Debentures). SEBI's 3 July 2024 circular reduced the minimum face value to ₹10,000 for eligible privately placed debt securities and NCRPS, subject to conditions in the circular. That has widened retail access, but it does not apply to every listed bond.

One mechanical detail that beginners miss: most listed bonds are illiquid. Daily traded volumes on a typical corporate bond are small, the bid-ask spread can be wide, and selling, say, ₹5 lakh of paper in a hurry usually means taking a price cut. Plan to hold to maturity unless you have a real reason not to.