The index fund advice is everywhere now. "Just buy Nifty, set SIP, forget it." Great advice. Incomplete advice. Which Nifty? At what expense ratio? From which AMC? These details determine whether you compound at 12% or 13.5% — and over 20 years, that gap is the difference between ₹82 lakhs and ₹1.1 crore on the same SIP amount.
What these two indices actually are
The NSE maintains two indices that most people conflate. They are meaningfully different.
Nifty 50: The 50 largest companies on NSE by free-float market capitalisation. Reliance, TCS, HDFC Bank, Infosys, ICICI Bank make up roughly 45% of the index. It is India's blue-chip basket — heavily weighted toward large conglomerates and private banks. Stable. Liquid. Boring. Reliable.
Nifty Next 50: Companies ranked 51st to 100th by market cap. Think Adani Ports, Siemens India, Cholamandalam Finance, Pidilite Industries, Zydus Lifesciences. Slightly smaller companies on the cusp of entering the Nifty 50. More sector diversity. Historically higher returns. Meaningfully higher volatility.
10-year performance: the data
| Index | 3Y CAGR | 5Y CAGR | 10Y CAGR | Max Drawdown | Std Dev |
|---|---|---|---|---|---|
| Nifty 50 | 14.2% | 15.8% | 13.4% | -38.5% | 17.2% |
| Nifty Next 50 | 16.8% | 18.2% | 15.1% | -44.3% | 22.6% |
| Nifty 500 | 15.1% | 16.4% | 13.8% | -40.1% | 18.4% |
| Nifty Midcap 150 | 21.4% | 22.7% | 16.9% | -47.2% | 25.8% |
The Next 50 has outperformed the Nifty 50 over every long horizon — but it has also fallen harder in every crash. The 2020 COVID crash took Nifty 50 down 38.5%. Next 50 fell 44.3%. The 2008 crash saw similar divergence. This is not a reason to avoid it. It is a reason to size it correctly.
“The Next 50 is a bet that India's next generation of blue chips is already hiding in plain sight.”
Aman Khan, Aceone
The expense ratio problem nobody talks about
A 0.5% difference in expense ratio compounds into a massive difference over 20 years. On a ₹10,000/month SIP at 12% gross returns, paying 0.1% ER vs 0.8% ER means the difference of roughly ₹14 lakhs at the 20-year mark. That is not rounding error. That is a car.
Most people pick funds from their bank app. Banks sell regular plans which charge 0.5–1.0% expense ratios versus 0.10–0.20% on direct plans. The difference goes to the distributor (your bank/broker), not to you. Use Zerodha Coin, Groww Direct, or MF Central for direct plans.
| Fund | Tracks | ER (Direct) | AUM | Where to Buy |
|---|---|---|---|---|
| UTI Nifty 50 Index Fund | Nifty 50 | 0.18% | ₹22,800Cr | UTI Direct / Zerodha |
| Nippon India Index Fund | Nifty 50 | 0.20% | ₹8,200Cr | Any direct platform |
| UTI Nifty Next 50 Index | Nifty Next 50 | 0.30% | ₹4,100Cr | UTI Direct / Groww |
| ICICI Pru Nifty 500 Index | Nifty 500 | 0.35% | ₹2,800Cr | ICICIDirect / Zerodha |
My actual recommendation
- Just starting, under 30: 100% Nifty 50 index fund, direct plan, lowest ER you can find. Build the habit. Simplicity wins early.
- Intermediate investor, 10+ year horizon: 70% Nifty 50 + 30% Next 50. You capture some of the extra return without doubling your volatility.
- Experienced investor, high risk tolerance: 50% Nifty 50 + 30% Next 50 + 20% Midcap 150 index. This is the portfolio that has historically delivered 15–16% CAGR — but be prepared for 45%+ drawdowns.
- Retiree or near-retirement: Nifty 50 only, with a debt allocation to match your needs. Volatility reduction matters more than return maximisation at this stage.
If you just want to start today without reading 800 more words: open MF Central, search "UTI Nifty 50 Index Fund Direct Growth", set up a ₹5,000 monthly SIP, and automate it. You can complicate it later. Starting beats optimising.