Index Fund — What It Is, Who Should Invest & Best Funds

SEBI definition: Passively managed fund that replicates a specific market index (Nifty 50, Nifty Next 50, etc.) with minimal active stock picking.

Who should invest

Any investor who wants low-cost, market-matching equity returns without relying on fund manager skill. Evidence shows most active funds underperform their benchmark over 10+ years.

Risk level	Moderate to High (depends on index)
Suggested horizon	5+ years
Historical returns	Mirrors the index — Nifty 50 has returned ~12-13% CAGR over 15 years
Taxation	Equity taxation: LTCG at 12.5% after ₹1.25L; STCG at 20%.

Advantages

• Lowest expense ratio (0.05–0.20%)
• No fund manager risk or style drift
• Fully transparent — you know exactly which stocks you own
• Beats most active funds over 10+ years (global evidence)

Drawbacks

• Never beats the index (by design)
• Full market exposure — falls with market, no active downside protection
• Tracking error means you may slightly underperform the index itself

Frequently asked questions

Index fund vs ETF — which is better?

Both track an index. The difference: you buy ETF units on a stock exchange (like shares) at real-time prices; you buy index fund units directly at end-of-day NAV. ETFs have slightly lower expense ratios but require a demat account. For SIP investors, index funds are more convenient. ETFs are better for lump sum investors with a demat account.

Related categories

• Large Cap Fund
• Flexi Cap Fund

See the best Index Funds ranked by data, or filter every scheme in the fund screener. Historical returns describe the past only — mutual fund investments are subject to market risks.