Probe @SEBI_India for Market Linked Debentures underlines #nifty50/#BankNifty /#stocks Year 2011, 7 days futures in #BankNifty Yr 2016,  Additional Surveillance Measures Circulars Yr 2018,  Adhoc Margin Yr 2018, For 7 days futures in #nifty50. @PMOIndia @FinMinIndia @Swamy39