The cases were related to market manipulation, price rigging, insider trading, takeover violations and illegal collective investment schemes, Minister of State for Finance Pon Radhakrishnan said in a written reply to the Lok Sabha.
During 2017-18 (till December last year), as many as 116 cases were taken up for investigation compared to 256 in the preceding financial year, 179 in 2015-16 and 135 in 2014-15, the minister noted.
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In a separate reply, Minister of State for Corporate Affairs P P Chaudhary said that Sebi has mandated listed companies to appoint at least one women director.
As on March 2017, 1,664 out of 1,728 active companies listed on NSE and 3,945 out of 4,107 listed on BSE have appointed women directors, he added.