Best Index Funds and ETFs in India: Nifty 50 to 500

The SPIVA India scorecard has said the same thing for years: the large majority of active large-cap funds fail to beat the index they are judged against — 93% over five years at the last full reading. Meanwhile the passive side of the industry crossed a milestone: index and ETF strategies pulled in ₹2.07 lakh crore of net inflows in fiscal 2026, about four times the fiscal 2021 level. Source: SPIVA India year-end data as cited in our index funds primer; AMFI-Crisil Mutual Fund Factbook 2026. The market has voted, and this post is the practical map of what it voted for: which index, which wrapper, which fund, and what each costs in late 2026.

The mechanics — what an index fund is, why the Nifty 50 fund is the default first holding — are covered in our index funds primer. This page adds the comparison layer: the indices themselves, the TER and AUM facts for the big funds, tracking error versus tracking difference, and the fund-versus-ETF decision with actual numbers.

The index menu: what each one actually owns

The choice is wider than most beginners need. Nifty 50 and Sensex overlap so heavily that the decision between them is a footnote — the Sensex's 30 names sit almost entirely inside the Nifty's 50. Nifty 500 stretches the same rupee across the whole market, adding the mid- and small-cap tail that drives dispersion; Nifty Next 50 is the focused bet on tomorrow's top-50 candidates. Source: NSE Indices index methodologies (Nifty 500 covering approximately 96% of listed market capitalisation).

The TER facts: what the big funds charge

SEBI caps index funds and ETFs at a 0.90% expense ratio under the 2026 framework, and competition has pushed real-world costs far below the cap. The established facts, late 2026:

Sources: UTI's own scheme page (month-end AUM ₹28,063.55 crore, launched March 6, 2000, minimum investment ₹1,000 — fetched 3 November 2026); HDFC and ICICI AUMs from tracker compilations of AMFI data (late 2026); Bandhan's TER as carried in our index funds primer from AMC disclosures (October 2026); Nifty BeES per AMFI-attributed trackers as on September 30, 2026, with its TER in the vicinity of 0.04% per Morningstar's disclosure. The UTI fund is the category's oldest large incumbent — twenty-six years of tracking one index — and its AUM lead is the market's own survivorship argument for passivity.

Sensex funds complete the core-menu picture: the BSE index's 30 names sit almost entirely inside the Nifty 50's 50, so a Sensex index fund is functionally a Nifty 50 fund with a different press release — the choice between them is a footnote, decided by TER and tracking record, not by exposure. On the ETF side, check two things before buying anything beyond the giants: the day's trading volume and the spread between best bid and ask — Nifty BeES trades in size with a hair-thin spread, while thinly traded ETFs can cost you more in the spread than their TER saves you in a year. The same diligence applies to gold and silver ETFs, which dominated inflows at points in fiscal 2026; they are commodity wrappers, not equity, and belong to the allocation layer rather than this core-and-satellite discussion.

Two newer names show where the shelf is heading. Motilal Oswal's Nifty 500 Index Fund has tracked the broad index for years; UTI launched its own Nifty 500 Index Fund through an NFO that ran August 31 to September 11, 2026, collecting about ₹153 crore — and by late October the young fund's NAV sat near ₹9.30 against the ₹10 launch price, purely reflecting the market's fall. Source: UTI NFO window per its announcements; AUM and NAV per fund trackers, October 30, 2026. Broader-index products are arriving fast; the index's age matters less than the tracker's fee and error.

Tracking error and tracking difference: the numbers that matter

Two concepts decide which Nifty 50 fund you buy, and they are not the same:

• Tracking difference (TD) is the simple gap: fund return minus index return over a period. It is mostly the fee, plus the drag from holding cash between inflows and trading days.
• Tracking error (TE) is the volatility of that gap — how wildly the fund's daily returns scatter around the index. A fund can have a tiny average TD and still be sloppy (large TE) if its replication is careless.

Index funds in India track the Total Returns Index (TRI) version of their benchmark, so dividends are part of the target — the right comparison for your money. In practice, the large Nifty 50 funds post tracking differences within a whisker of their TERs, and the published TE figures for the big funds run well under half a percent annualised. Source: NSE Indices' benchmark methodology and AMC fact-sheet disclosures; the TD-versus-TE distinction as explained in our index funds primer. The practical rule: compare the fund's three-year annualised return against the index TRI's; whatever gap survives is the true cost — more honest than the TER alone, because it catches cash drag and sampling shortcuts too.

Fund or ETF: the decision with your actual rupees

The ETF's TER is lower — Nifty BeES at roughly 0.04% is as cheap as listed products get. But TER is not the whole cost. ETFs trade on the exchange at market prices: you pay brokerage, the bid-ask spread (thin for Nifty BeES, wider for less-traded ETFs), and you must place the order yourself at some moment during market hours — including every SIP instalment. Index funds execute at the day's NAV, accept SIP mandates natively, and need no demat. The site's index funds primer walks the wrapper choice in detail; the summary holds in 2026: for monthly SIP money, the fund usually wins on total cost of ownership; for a lumpsum investor already trading shares, the ETF's lower TER can win.

Worked example of the fee mathematics, lumpsum route: ₹1 lakh into the Nifty 50 for 25 years at a 12% gross index return. In a fund at 0.16% direct TER, the net 11.84% compounds to about ₹16.4 lakh. In a hypothetical 1.2% actively-charged wrapper, the net 10.8% reaches about ₹13.0 lakh — a gap of ₹3.4 lakh from fees alone on one lakh of principal (illustrative arithmetic; check the scheme's own TER). This is why the TER comparison — not the returns table — is the whole decision inside a single index.

What goes wrong with index investing

• Buying the index story, then the wrong index. A Nifty 50 fund and a Nifty Smallcap 250 fund are both 'index funds' and almost different asset classes. Match the index to the job — core versus satellite — before the fee comparison.
• Ignoring tracking difference. Two funds tracking the same index with TERs of 0.16% and 0.29% differ by about ₹100 a year on a ₹10,000 SIP at the start — small, but a fund with a poor three-year tracking record against TRI should lose to a tighter one at the same fee.
• Paying demat AMC to hold ETFs you would rather SIP. ETF SIPs need either manual monthly orders or broker auto-sweep features; index funds do it natively. The wrapper should serve the habit, not fight it.
• Thematic index creep. Every hot theme spawns an index, and every index spawns a fund. A 'Nifty India Digital' fund is an active bet wearing passive clothing — the index methodology is the active decision. Reserve satellite index bets for a small slice.
• Forgetting the tax frame. Index funds and equity ETFs are equity-oriented: 12.5% long-term above the ₹1.25 lakh exemption after 12 months, 20% short-term — the same rules our mutual fund taxation post applies to any equity fund. ETF unit transfers can also matter at inheritance; keep nominations current on both demat and folio.

Who should hold what

A defensible default for a first equity portfolio: a Nifty 50 index fund direct plan (any of the large, cheap incumbents — the difference between them is about ₹100 a year on a ₹10,000 SIP), automated as a SIP the day after salary, with Nifty 500 as the broadening step once the core is running and Nifty Next 50 as the optional satellite. ETFs suit the lumpsum investor who already lives on the trading terminal — Nifty BeES at its fee and liquidity is the cleanest expression. Everything else on the passive shelf — factors, themes, smart-beta indices — is a bet you should be able to explain in one sentence before it earns a rupee. Our SIP guide covers the automation; the mutual funds guide holds the category map this page hangs from.

This is educational content, not investment advice. Consult a SEBI-registered advisor for decisions specific to your situation.