Index funds and exchange-traded funds (ETFs) are passive investment structures that seek to replicate the performance of a market index, such as the Nifty 50 or Sensex, by holding the same stocks in similar proportions.
This is general educational content only and not personalised investment advice. Please consult a SEBI-registered investment adviser before making any investment decisions.
Many Indian households build savings through fixed deposits, PPF, gold, or real estate for stability. Index funds and ETFs follow a rule-based approach to match market returns at lower costs compared to actively managed mutual funds, where managers select stocks aiming to outperform the index.
What Are Index Funds?
An index fund is a mutual fund that mirrors a specific market index by investing in its constituent stocks in the same weights.
It aims to deliver returns close to the index, after deducting a small expense ratio and any tracking error. No active stock picking takes place.
In India, SEBI regulates index funds under mutual fund rules. Units are transacted based on the daily Net Asset Value (NAV).
What Are Exchange Traded Funds (ETFs)?
An ETF tracks a market index but lists units on exchanges like NSE or BSE for trading.
Units can be bought or sold during market hours at prevailing prices, offering intraday liquidity similar to stocks.
Most Indian ETFs track broad indices like Nifty 50 or Sensex, using the same passive replication method.
A Relatable Indian Analogy: The Public Bus Route
Imagine an index fund or ETF as a public bus on a fixed route set by authorities (the market index). It follows the schedule without shortcuts or detours.
This differs from a private taxi (actively managed fund) that selects alternate paths to potentially reach faster. The bus provides reliable, low-cost travel, matching overall flow, highlighting passive focus on consistency over outperformance.
Key Differences: ETFs Versus Index Mutual Funds
The table below compares key features in the Indian context.
| Feature | Index Fund (Mutual Fund Scheme) | ETF (Exchange Traded Fund) |
|---|---|---|
| Structure | Mutual fund units | Units listed and traded on the stock exchange |
| Trading | At end-of-day NAV | Intraday at market prices |
| Liquidity | Typically T+1 settlement | Instantly during market hours |
| Cost Structure | Expense ratio (BER up to 0.90% post-2025) + possible exit load | Often lower expense ratio (e.g., 0.02–0.05%) + brokerage |
| Minimum Investment | Often ₹100–₹5,000 (SIP suitable) | Price of one unit (low entry) |
| Purchase Mode | Mutual fund platforms or distributors | Demat account via a broker |
Both depend on underlying index performance and follow SEBI transparency rules.
How Passive Tracking Works
Passive funds invest in index stocks matching the composition and weights.
For example, a Nifty 50 fund allocates proportionally to the top companies. Rebalancing occurs only on index changes.
This automated process reduces costs. SEBI requires tracking error disclosure. In December 2025, SEBI capped Base Expense Ratio (BER) at 0.90% for passive funds (excluding statutory levies like GST), separating core costs for clarity.
Common Indices Tracked in India
Broad indices dominate:
- Nifty 50: Top 50 NSE companies by market capitalisation.
- BSE Sensex: Top 30 BSE companies.
These offer diversified exposure, complementing traditional household savings.
Growth of Passive Funds in India (2025 Update)
Passive funds have seen strong adoption. Total passive AUM reached approximately ₹14 lakh crore by late 2025, driven by inflows into equity, gold, and other ETFs.
SEBI’s 2025 updates, including the 0.90% BER cap, support cost efficiency and transparency in this segment.
Typical Scenarios for Passive Funds
Investors often use index funds or ETFs to:
- Seek broad equity exposure alongside fixed income or gold
- Invest regularly via SIPs (index funds) or periodically
- Add simple market participation to household portfolios
Key Limitations and Risks to Understand
- No return guarantees; performance follows the index, which may fall.
- Risk of capital loss, especially short-term.
- SEBI ensures process transparency but not market risk protection.
- Minor tracking differences are possible due to costs or operations.
- Always review documents independently and consult certified advisers.
Frequently Asked Questions
What is the main difference between index funds and ETFs in India?
Index funds use daily NAV via mutual fund channels; ETFs trade live on exchanges.
Which generally has lower costs?
Both are low-cost. Post-2025, BER caps at 0.90%; ETFs often have ratios like 0.02–0.05%, index funds 0.10–0.30%, plus brokerage for ETFs.
What does passive mean?
Funds replicate an index without active stock selection, targeting market returns.
How closely do they match Nifty or Sensex?
They aim for a close match, but a small tracking error may occur.
Suitable for beginners?
They provide simplicity and diversification but involve equity risk; consider long-term only after understanding.
Any 2025 changes for passive funds?
SEBI introduced 0.90% BER cap (excluding levies) for better cost separation.
Key Takeaways
- Index funds and ETFs passively track indices for market exposure.
- Differences centre on trading and liquidity mechanisms.
- 2025 SEBI BER cap at 0.90% enhances cost clarity.
- Full market risk applies; no guarantees.
- Complement traditional savings after an independent review.
Related Reading
- To review sectoral focus, revisit Sectoral and Thematic Funds
- If low-risk debt appeals, see Arbitrage Funds
