The 10 Bond Investing Mistakes Indians Actually Make (Ranked by Damage)

Bond mistakes are quieter than equity mistakes. There’s no dramatic crash, just years of leaked basis points punctuated by the occasional default. Here are the ten that keep recurring in Indian portfolios, ranked roughly by damage done, each with its prevention.

1. Concentration in one issuer

Every default story shares one villain, and it’s position size. The retiree with 40% in DHFL NCDs didn’t make a credit mistake. Credit mistakes are survivable. They made a sizing mistake.

Fix: the 5%-per-issuer cap, enforced before yield is even discussed.

2. Buying the coupon, not the credit

A 9.5% monthly-payout NCD attracts the buyers least equipped to underwrite the NBFC behind it. The coupon is the price of risk, not a gift, and the market was telling you DHFL was dangerous by paying so much.

Fix: ask the checklist’s question, why is this issuer paying this much?, and read the rating rationale rather than the rating.

3. Comparing pre-tax numbers

An 8.2% NCD “beating” a 7.1% FD at the 30% slab might be losing to a 97-priced G-sec that never entered the comparison. Interest is slab-taxed and listed capital gains are 12.5%, so the composition of the return changes the ranking.

Fix: no purchase before the post-tax XIRR comparison. It takes ninety seconds.

4. Duration accidents

Someone buys a 2043 G-sec “for safety,” then finds out what a 1% rate rise does to a duration-11 position in the year they need the money. No default required. Just physics meeting an unexamined horizon.

Fix: match duration to horizon, check it in the calculator’s shock table before buying, and use a ladder when the horizon is fuzzy.

5. Trusting the platform’s yield

The same ISIN routinely shows 30–50 bps of yield difference across platforms, because the markup lives in the price. Sometimes the “yield” field isn’t YTM at all, and the jargon decoder catalogues those tricks.

Fix: recompute every quoted yield in the YTM calculator and cross-check one competing venue. Of everything on this list, this habit pays for itself fastest.

6. Ignoring the sovereign menu

Plenty of households hold ₹40L of FDs spread across four banks to dodge DICGC limits, while never opening the zero-fee portal where the government sells T-bills, G-secs and SDLs with no caps, no credit anxiety and often better post-tax outcomes.

Fix: build the sovereign core first. Credit is a satellite you add on purpose, not the default setting.

7. Believing “like an FD”

This is the phrase that moved Yes Bank AT1s into retirement accounts. Anything that needs an FD comparison to feel safe (perps, MLDs, unlisted paper, “curated” 11% opportunities) is admitting in the same breath that it isn’t one.

Fix: treat the phrase as a stop sign. Decode the instrument or walk away.

8. Letting coupons rot

A ₹20L bond book throws off ₹1.4L a year, and it habitually sits in a savings account at 3%. That’s roughly 60 bps of silent portfolio drag, compounding into lakhs over a decade. YTM assumed you’d reinvest. Nobody told the coupons.

Fix: set a standing rule that coupons sweep monthly into the shortest ladder rung or T-bill roll, automated or calendared.

9. Treating cumulative paper as if shape were safety

Cumulative NCDs put every rupee of credit exposure on one future date. The issuer has to be solvent then, not on average. The payout is also taxed as interest rather than the capital gain people assume.

Fix: hold zero-shaped paper to a stricter credit bar, and verify its tax treatment in the information memorandum before you buy.

10. Panic-selling marked-down funds

Franklin’s lesson runs the other way from the usual one. Investors who dumped side-pocketed units at panic discounts were selling paper that ultimately paid nearly in full. Rate drawdowns in gilt funds produce the same error in a different costume: selling duration at the bottom of its swing.

Fix: size positions you can sit with (mistakes 1 and 4), so that sitting stays affordable. Panic is usually a sizing failure showing up as an emotion.

The pattern behind all ten

Every entry here reduces to skipping one of three cheap checks: the number (compute it yourself), the credit (read what you’re lending to), or the size (cap what any one thing can do to you). The calculators make the first take ninety seconds and the guides make the second take ten minutes. The third needs a rule you set once, ideally before the next 9.5% monthly-income opportunity finds you.

Educational content, not investment advice. Tax rules current for FY 2026-27 to the best of our knowledge, but verify with a professional before acting. See the full disclaimer.