Does Index Investing work in India?

Introduction

Index funds in India are often seen as a simple, low-cost way to participate in equity markets. The idea is straightforward — buy the market, hold for the long term, and benefit from overall economic growth.

Investors should consider the advantages and disadvantages of Index Funds in India before making a decision.

However, many investors assume that what works in developed markets like the US will automatically work in India. That assumption deserves a closer look.

In this article, we examine whether index funds in India truly offer the same advantages, where they fall short, and how investors should think about them within a disciplined portfolio framework.

Understanding Index Funds in India

Index funds are passive investment vehicles that aim to replicate a benchmark index such as the Nifty 50. They follow a buy-and-hold approach, with minimal portfolio turnover and lower costs compared to actively managed funds.

Globally, especially in markets like the US, passive investing has gained significant traction. However, in India, index funds in India still represent a small portion of total investments.

The key question is not whether index funds are good in absolute terms, but whether they are the best fit given the structure and characteristics of Indian markets.

Why Index Funds Work Differently in India

1. Higher Probability of Active Outperformance

In developed markets, very few active funds outperform indices over long periods. But India presents a different picture.

A significant proportion of actively managed mid-cap and multi-cap funds have historically beaten benchmark returns over long horizons. This creates a different risk-reward equation — investors have a meaningful chance of outperforming the index.

This is one of the biggest reasons why index funds in India have not dominated portfolios the way they have in the US.

2. Tax Efficiency Is Not a Strong Advantage

In markets like the US, index funds benefit from lower turnover, which leads to lower tax liabilities for investors.

In India, however, taxation applies at the time of redemption, not during portfolio churn within the fund. This removes a major structural advantage of passive investing.

As a result, index funds in India do not enjoy a meaningful tax edge over actively managed funds.

3. Cost Advantage Is Less Impactful

Low cost is often the strongest argument for index investing.

While index funds are indeed cheaper, the relative impact of cost is different in India. When long-term equity returns are in the range of 12–13%, a 1% expense ratio has a smaller drag compared to markets delivering 7–8%.

This reduces the relative benefit of choosing index funds in India purely for cost efficiency.

4. Concentration Risk in Indian Indices

Indian indices like the Nifty 50 are relatively concentrated, with a significant portion of weight allocated to the top 10 stocks.

This creates two implications:

• Portfolio performance becomes heavily dependent on a few large companies
• Many high-potential businesses outside the index receive little to no representation

Active strategies can exploit this inefficiency, whereas index funds in India are bound by index construction.

The Real Decision: Average vs Process-Driven Returns

At a fundamental level, index investing delivers average market returns by design.

In a zero-sum market:

• Some investors outperform
• Some underperform
• The index represents the average

The real decision for an investor is not between “safe vs risky,” but between:

• Accepting average returns through passive investing
• Attempting better-than-average outcomes through a disciplined, process-driven approach

Importantly, outperforming the index requires a portfolio that looks different from the index — and that difference often leads to periods of underperformance as well.

This is where behavior becomes critical. Without a clear framework, investors may abandon strategies at the wrong time.

Where Index Funds Fit in an Indian Portfolio

Despite their limitations, index funds in India are not irrelevant.

They can be useful for:

• Investors who prefer simplicity
• Those who want minimal involvement in decision-making
• Portfolios where behavioral discipline is a challenge

However, relying entirely on index funds assumes that:

• Market efficiency is high
• Active outperformance is rare
• Index construction captures the best opportunities

These assumptions are not fully aligned with the current Indian market structure.

Index funds in India offer simplicity, low cost, and market-linked returns. But they do not carry the same structural advantages they do in developed markets.

Indian markets still provide room for process-driven investing to outperform — provided it is backed by discipline, diversification, and long-term thinking.

The focus should not be on choosing between passive and active in isolation, but on building a framework that aligns with how markets function and how investors behave.