Symbol Expiry Put/Call OI Put/Call S&P CNX NIFTY 30/06/2011 70.21 0.75 S&P CNX NIFTY 29/12/2011 4.50 423.00 S&P CNX NIFTY 25/06/2009 3.00 0.86 TTML 25/12/2008 1.89 1.78 S&P CNX NIFTY 29/01/2009 1.39 17.14

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