In contrast, the returns on gold have not been more than 5-6 per cent over a longer time horizon of 15-20 years, Sinha said.
At the same time, the equity market also helps in the growth of the Indian economy as the money invested in equities is utilised for infrastructure-building and for the economic prosperity of the country, Sinha told PTI in an interview.
The Securities and Exchange Board of India (Sebi) Chairman also said a greater share of household savings has begun coming into the equity market and the ongoing rout in gold prices and a long-continuing weakness in the real estate market will make equities much more attractive.
"People with surplus funds do look for alternative investment channels, and gold has been an important one for years. But gold can be only a small portion and the entire amount should not go there.
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"Especially now, when gold prices are not that optimistic, there are all the chances that people would look for other avenues, and equity market has consistently given very good returns on a long-term basis. That is the beauty of this market," Sinha said.
"Yes, in a short period, it can be very volatile and it can also give un-imaginable returns. But Indian equity market, on a long-term basis, has given returns of more than 15 per cent compounded rate year after year."
Gold prices have fallen sharply in recent months and recently touched their lowest level in about four years in India. The fall in global prices has been even sharper and the yellow metal has touched its lowest level in six years.
In comparison, the stock market benchmark Sensex has risen by nearly 2,000 points in the past one year although the markets have been volatile for past couple of quarters on weak corporate earnings and negative global cues. The Sensex had rallied as much as 30 per cent during 2014.