At present, the number of folios or investor accounts across the industry stands at a little over four crore.
The overall asset base of mutual funds can reach Rs 20 trillion by 2018, from about Rs 12 trillion now, top fund house Reliance Mutual Fund's CEO Sundeep Sikka said here.
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"The mutual fund industry folios number will reach to 10 crore in the next five years from four crore currently," Sikka said here during an interaction.
"Overall positivity in the Indian economy and the growing confidence of retail investors will lead to increase in folio numbers. Awareness programmes by the industry will further contribute to growth, in terms of new investors," he added.
Folios are numbers designated for individual investor accounts though in some cases one investor can have multiple accounts.
In the last fiscal 2014-15, the entire industry, comprising 44 fund houses, saw an addition of 22 lakh folios.
Prior to that, the industry had seen a continuous closure of folios for many years.
In the past one year, equity markets gave returns of around 30 per cent and several funds gave more than the index returns.
This brought retail investors' interest back into equities
and they started participating through mutual funds. Equity funds accounted for a major part of new folio additions during the last financial year.
Sikka said the total asset base of mutual funds may reach Rs 20 trillion by 2018 as there is huge scope for expanding the reach of MFs and channelising household savings into them.
At present, only two per cent people in India invest in mutual fund schemes.
He said that people, who are investing in real estate and unproductive assets like gold, should divert some of their money into mutual funds.
The likely impressive growth in AUM to Rs 20 trillion would be accompanied by an increase in folio numbers, substantial contribution from smaller cities and a higher number of distributors, among others.
Sikka, who is also the chairman of mutual fund industry body AMFI, had earlier said that the asset base will reach Rs 20 trillion mark by 2020.
However, the renewed growth momentum would now help reach this target earlier by 2018 itself, he added.