Best Index Funds — Ranked by Returns & Risk
Index funds simply track a benchmark like the Nifty 50 or Nifty 500 at a very low cost. They beat most active funds over the long run purely on lower fees — ideal for hands-off investors.
Index funds are the simplest way to own the Indian stock market. Instead of paying a manager to pick stocks, an index fund mechanically holds every company in a benchmark — like the Nifty 50 or Nifty 500 — in the same weight. Because there is no research team to fund, costs are a fraction of an active fund, and decades of data show that low cost is the single most reliable predictor of long-term returns.
Why index funds beat most active funds
Every year, S&P's SPIVA India scorecard finds that the majority of large-cap active funds fail to beat their benchmark over 5- and 10-year periods. The reason is structural, not bad luck: a typical large-cap active fund charges 1.5–2.2% a year, while a direct index fund charges 0.1–0.3%. That ~1.7% gap compounds relentlessly — over 20 years it can quietly erode a third of your final corpus.
An index fund also removes two risks you cannot control: manager risk (a star manager leaving, or their style falling out of favour) and concentration risk (one wrong bet dragging the whole fund). You simply get the market's return minus a tiny fee. For most investors, market returns at rock-bottom cost beat chasing outperformance that rarely shows up — see our deeper take on index vs active funds.
Types of index funds in India
Not every index fund tracks the same thing. The right one depends on how much risk and growth you want:
- Nifty 50 / Sensex — India's 50 (or 30) largest companies. The safest, most popular starting point for a first index fund.
- Nifty Next 50 — the 51st–100th largest companies. Higher growth and bigger swings; often paired with a Nifty 50 fund.
- Nifty 100 / Nifty 500 — broader baskets that add mid and small caps for one-fund, whole-market diversification.
- Nifty Midcap 150 / Smallcap 250 — passive ways to own the mid- and small-cap space without an active manager.
- Smart-beta & sectoral — equal-weight, momentum and low-volatility indices, or sector indices like Nifty IT and Nifty Bank. Best used as small satellite holdings, not your core.
Who should invest in index funds
Index funds suit you if you want to invest and forget — no tracking fund-manager changes, no second-guessing star ratings. They are ideal for first-time investors building a core SIP, for anyone who values the certainty of low cost over the slim chance of beating the market, and for long-term goals 7+ years away where compounding does the heavy lifting. If you would rather a manager actively steer the portfolio, an active flexi-cap fund may suit you better.
How to pick the right index fund
Since every Nifty 50 fund holds the same 50 stocks, the one with the best return today is mostly the one with the lowest cost and tightest tracking. Compare on these four things:
- Expense ratio — lower is better; the cheapest direct Nifty 50 funds charge ~0.1–0.2%. Here is what an expense ratio is.
- Tracking error — how closely the fund mirrors its index. Lower means the fund is doing its one job well.
- Fund size (AUM) — a larger, established fund usually tracks more tightly and is unlikely to be merged away.
- Direct plan, Growth option — always pick Direct over Regular to avoid commission drag (why direct plans win).
The ranked table above already filters to Direct-Growth plans and sorts by long-term returns, so the funds near the top combine low cost with tight tracking. Use the screener to filter further, or compare two funds side by side.
How index funds are taxed
Index funds that track equity indices are taxed exactly like equity funds. Sell within 12 months and gains are short-term, taxed at 20%. Hold longer than 12 months and gains are long-term, taxed at 12.5% — with the first ₹1.25 lakh of long-term gains each financial year completely tax-free. Index funds that track debt or international indices follow different rules; read how mutual funds are taxed for the full picture.
Frequently asked questions
Which is the best index fund in India?
Because every Nifty 50 fund owns the same stocks, the "best" one is essentially the cheapest with the tightest tracking. The ranked table above lists the top index funds by long-term returns — the leaders are typically large, low-cost Nifty 50 and Nifty Next 50 funds from major fund houses. Always compare the expense ratio before deciding.
Are index funds good for beginners?
Yes — index funds are one of the best starting points for new investors. They need no research into fund managers, carry the lowest fees, and remove the risk of picking an underperforming active fund. A monthly SIP into a Nifty 50 or Nifty 500 index fund is a simple, proven first investment.
Should I choose a direct or regular index fund plan?
Always choose the Direct plan. A regular plan bakes a distributor commission into a higher expense ratio, which quietly lowers your returns every year. For the identical underlying index, a direct plan can leave you with noticeably more wealth over 10–15 years.
Index fund or ETF — which is better?
Both track an index cheaply. An index fund is easier for SIPs and needs no demat account or market timing — you buy at the day's NAV. An ETF trades like a share, can be marginally cheaper, but needs a demat account and can have liquidity gaps. For most SIP investors, an index fund is simpler.
How much of my portfolio should be in index funds?
There is no single rule, but many long-term investors keep a large core — often 50–100% of their equity — in broad index funds, and add active or thematic funds only as smaller satellites. The right mix depends on your goals and risk appetite; our fund finder quiz can suggest a starting point.
What is tracking error in an index fund?
Tracking error measures how far a fund's returns drift from the index it follows. A well-run index fund keeps this small. Higher tracking error means the fund is not mirroring the index cleanly — usually due to cash holdings, higher costs or trading delays — so lower is better.