Interestingly, retail investors opted for smaller companies to invest as institutional investors typically gave them a miss.
According to Prime Database, the holding went up to 21.35 per cent at the end of March 2015, from 20.99 per cent as of March 2014.
Foreign portfolio investors' (FPIs) ownership in NSE-listed firms read 6.44 per cent while that of domestic institutional investors (DIIs) came in at 5.01 per cent.
However, the retail share in Nifty companies stood at a meagre 7.31 per cent whereas for the top 100 NSE-listed firms, it read 8.19 per cent.
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The increase was driven largely by the optimism about reform measures taken by the Narendra Modi government, according to experts.
Overall, retail holding rose in 712 companies listed on NSE while their stake fell in 718 firms.
The increase in retail shareholding is in sync with the BSE benchmark Sensex surging 25 per cent in the past fiscal.
In terms of retail shareholders by numbers, the Reliance Group took the lead.
The top five companies with highest number of retail shareholders are Reliance Power (37.82 lakh), Reliance Industries (27.44 lakh), Reliance Communications (16.35 lakh), State Bank of India (11.95 lakh), Reliance Infrastructure (11.48 lakh) and Reliance Capital (10.25 lakh).