20% returns, ₹1 lakh a month: Realistic or unreasonable?

Summary: If I have Rs 1 crore to invest in mutual funds and want a 20 per cent annual return along with a monthly income of Rs 1 lakh, where should I invest? I am above 80 years of age – Anonymous

Every now and then, we receive questions that highlight the gap between what investors expect markets to deliver versus what they actually do.

One such query recently landed in our inbox. The investor asked: “If I have Rs 1 crore to invest in mutual funds and want a 20 per cent annual return along with a monthly income of Rs 1 lakh, where should I invest? I am above 80 years of age.”

It’s an honest question, but also a revealing one. Hidden within it are two common expectations: that markets can reliably deliver very high returns and that a modest corpus can comfortably support large withdrawals. Let’s unpack both.

The reality of 20 per cent-plus returns

Investors typically assume that if the market has posted blockbuster returns in recent years, it will continue doing so in the long term. The rally after the Covid crash is a good example. 

As of March 9, 2026, the Nifty Midcap 150 TRI delivered about 22 per cent over three years, while small-cap stocks returned roughly 19 per cent. Even their seven-year returns stood near 20 per cent and 17 per cent respectively.

However, markets don’t always move in a straight line. And so, expecting it to deliver 20 per cent every year becomes unreasonable.

To understand this, we looked at rolling returns over the past 20 years for large, mid and small caps. Specifically, we calculated how often returns exceeded 20 per cent across different time periods. The table below summarises the results. 

Over one-year periods, strong returns appear fairly often, especially in mid- and small-cap segments. Even in periods exceeding three years, the odds remain fairly strong.

But as the time horizon increases, the probability drops sharply. Over longer periods, such as 10 years, instances of returns exceeding 20 per cent become far less common.

At this point, one might wonder: if the chances of high returns are greater over shorter periods, why not focus on the short term then? Because the short term is also where uncertainty lives. 

Short-term excitement comes with short-term risk

When we examine how often markets deliver negative returns over the same rolling periods, the picture becomes clearer.

The table above shows that for one-year periods, negative returns occurred about 19 per cent of the time in large caps, 25 per cent in mid caps and nearly 37 per cent in small caps.

This reflects the trade-off investors face: shorter horizons offer higher return potential but also greater risk, while longer horizons smooth volatility but moderate returns.

So while 20 per cent returns do happen, expecting them every time is like expecting a century in every cricket match: it happens, just not every time.

The second part of the puzzle: Rs 1 lakh a month

At first glance, the math seems simple: Rs 1 lakh a month equals Rs 12 lakh a year, or a 12 per cent withdrawal rate on a Rs 1 crore corpus. That’s where the challenge begins.

Before looking at the numbers, it is worth noting that retirees are generally better off avoiding withdrawals from a portfolio invested entirely in equity funds, as market declines can temporarily depress portfolio values.

A more balanced approach is to split the corpus between equity and debt, with equity typically in the 30-60 per cent range and debt making up the remaining 40-70 per cent. Withdrawals can be made from the debt portion, which can be periodically replenished from the equity allocation.

Assuming such a portfolio earns about 10 per cent annually, the sustainability of the corpus depends heavily on the withdrawal rate. The table below shows how long the corpus lasts under different scenarios.

As the table above shows, withdrawing Rs 1 lakh a month depletes the corpus fairly quickly. If the withdrawal remains fixed, the money lasts around 15 years. But once withdrawals rise with inflation, in a more realistic scenario, the corpus lasts only about 10 years.

The real issue isn’t poor investment returns but the high withdrawal rate. A more sustainable approach is to start with a 6 per cent withdrawal rate and increase withdrawals by 6 per cent each year. This would mean an initial annual withdrawal of about Rs 6 lakh (Rs 50,000 per month), which can gradually rise over time as the corpus grows.

Over the long term, the difference is stark: a 12 per cent withdrawal rate steadily depletes the corpus, while a more moderate withdrawal rate allows it to last much longer.

The takeaway

Strong bull markets often lead investors to expect 20 per cent returns as the norm, while many underestimate how quickly large withdrawals can erode a corpus.

The lesson is simple: successful investing is less about chasing extraordinary returns and more about keeping expectations realistic and withdrawals disciplined. So that you don’t outlive your corpus in your silver years.

And if you want more guidance on how to structure your portfolio or where to invest for retirement, subscribe to Value Research Fund Advisor. Here, you will get more clarity on how and where to invest, based on your risk appetite, financial goals and time horizon.

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This article was originally published on March 11, 2026.