Two Categories, Two Very Different Purposes
This post covers two fund categories that every Indian investor should know about:
- Index Funds: Track a market index (like Nifty 50) passively. No fund manager making stock picks. Lowest cost way to invest in equity.
- ELSS (Equity Linked Savings Scheme): Actively managed equity funds that qualify for Section 80C tax deduction (up to ₹1.5 lakh/year). Come with a 3-year lock-in.
They solve different problems — let's break down each.
Part 1: Index Funds
What is an Index Fund?
An index fund simply buys all the stocks in a specific index in the same proportion. A Nifty 50 index fund owns all 50 Nifty stocks. A Nifty Next 50 fund owns stocks ranked 51-100. There's no fund manager trying to beat the market — the fund just mirrors it.
Why this matters: Research consistently shows that over 10+ years, most actively managed large cap funds fail to beat the Nifty 50 index after fees. If you can't beat the market, just own the market — at the lowest cost possible.
Top Index Funds — By Index Type
| Fund Name | Index Tracked | 5Y Return | Expense Ratio | Tracking Error | AUM |
|---|---|---|---|---|---|
| UTI Nifty 50 Index Fund – Direct | Nifty 50 | 17.1% | 0.18% | 0.03% | ₹21,400 Cr |
| HDFC Index Fund Nifty 50 – Direct | Nifty 50 | 17.0% | 0.20% | 0.04% | ₹18,200 Cr |
| Motilal Oswal Nifty Next 50 Index – Direct | Nifty Next 50 | 21.6% | 0.28% | 0.06% | ₹6,800 Cr |
| UTI Nifty 200 Momentum 30 Index – Direct | Nifty200 Momentum30 | 28.4% | 0.32% | 0.08% | ₹18,500 Cr |
| Motilal Oswal Nifty Midcap 150 Index – Direct | Nifty Midcap 150 | 27.2% | 0.30% | 0.07% | ₹8,900 Cr |
How to pick the right index fund
Since all Nifty 50 index funds buy the same stocks, the only differences are:
- Expense ratio: Lower is always better. UTI wins with 0.18%.
- Tracking error: How closely the fund matches the actual index. Under 0.05% is excellent. UTI and HDFC both nail this.
- AUM: Larger AUM means better liquidity and lower impact cost. Both UTI and HDFC are large enough.
Simple rule: Pick the fund with the lowest expense ratio and tracking error. For Nifty 50, UTI Index Fund is hard to beat.
Beyond Nifty 50 — smart index options
The index fund world has exploded beyond Nifty 50:
- Nifty Next 50: Companies ranked 51-100. More growth-oriented than Nifty 50, with higher volatility. Think of it as a "mid-large cap" index.
- Nifty200 Momentum 30: Picks 30 stocks with the strongest price momentum from the top 200. Has outperformed Nifty 50 significantly but comes with higher volatility and the risk of momentum reversals.
- Nifty Midcap 150: Pure mid cap index. A passive alternative to active mid cap funds.
Part 2: ELSS (Tax Saving Funds)
What is ELSS?
ELSS is a category of equity mutual funds that gives you a tax deduction under Section 80C of the Income Tax Act. You can claim up to ₹1.5 lakh/year in deductions, saving up to ₹46,800 in tax (at the 30% + cess bracket).
The trade-off: each SIP installment has a 3-year lock-in period. Money invested in April 2026 can only be redeemed after April 2029.
Important note: If you've opted for the New Tax Regime, Section 80C deductions don't apply — ELSS offers no tax benefit. In that case, skip ELSS and invest in regular equity funds or index funds instead.
Top 5 ELSS Funds
| Fund Name | 5Y Return (CAGR) | Expense Ratio | AUM | Style |
|---|---|---|---|---|
| SBI Long Term Equity Fund – Direct | 21.4% | 0.72% | ₹28,600 Cr | Multi-cap blend |
| Parag Parikh Tax Saver Fund – Direct | 23.8% | 0.65% | ₹4,200 Cr | Flexi cap + international |
| Canara Robeco ELSS Tax Saver – Direct | 20.2% | 0.42% | ₹9,800 Cr | Consistent compounder |
| HDFC ELSS Tax Saver Fund – Direct | 22.1% | 0.79% | ₹16,400 Cr | Value-oriented |
| Mirae Asset ELSS Tax Saver – Direct | 20.8% | 0.56% | ₹25,100 Cr | Growth at reasonable price |
Choosing the right ELSS
- Treat it as an equity fund first: Don't pick an ELSS just for the tax benefit. You're locking money for 3 years — pick a fund you'd invest in even without the tax angle.
- Parag Parikh stands out: It's the only ELSS with international diversification (Alphabet, Microsoft). At 23.8% CAGR and 0.65% expense ratio, it's a strong all-rounder.
- Canara Robeco for consistency: Lowest expense ratio (0.42%) and a track record of being in the top quartile across time periods. Not the flashiest but incredibly reliable.
- Don't invest more than ₹1.5 lakh/year: ELSS only saves tax on the first ₹1.5 lakh. Beyond that, it's just an equity fund with a lock-in — no advantage.
Index Fund vs ELSS — Which Do You Need?
| Situation | Choose |
|---|---|
| You're on the Old Tax Regime and haven't used your full 80C limit | ELSS (₹1.5L/year) + Index funds for the rest |
| You're on the New Tax Regime | Index funds only (ELSS has no tax benefit) |
| You want the lowest cost equity exposure | Nifty 50 index fund |
| You want a single fund portfolio | Nifty200 Momentum 30 or Nifty Next 50 index fund |
| You believe active managers can add value | ELSS (actively managed) for the 80C portion |
The Right Allocation
In our financial planner, index funds and ELSS typically fall under the "Others" allocation. A common setup:
- ₹1.5 lakh/year in ELSS (₹12,500/month SIP) if you're on the Old Tax Regime
- Core portfolio in Nifty 50 index fund — 30-50% of equity allocation
- Satellite allocation in Nifty Next 50 or Momentum index for higher growth
The beauty of index funds: set up a SIP and literally forget about it for 10 years. No fund manager changes to worry about, no style drift, no surprises.