The National Stock Exchange (NSE) has added Cairn India to futures and options (F&O) segment with effect from 9 January 2007, the day of the scrip’s debut on the bourses. ‘The new security will open for trading initially in the cash segment and subsequently, the trading will commence in F&O segment for which a separate broadcast will be sent’, according to a circular issued by NSE to its members. The lot size of Cairn India in F&O segment is 1250.