NATIONAL SECURITIES CLEARING CORPORATION LIMITED

FUTURES & OPTIONS SEGMENT

Circular No: NSCC/F&O/C&S/901 October 20, 2008

Download No: NSE/CMPT/11519

Sub: Revised Exposure Margin

This is further to our circular No. NSCC/F&O/C&S/899 (Circular download No NSE/CMPT/11498) dated October 15, 2008 and SEBI Circular no. SEBI/DNPD/Cir-42/2008 dated October 20, 2008 regarding Revised Exposure Margin for Exchange Traded Equity Derivatives.

Members may please note that as per the SEBI circular the revised exposure margins shall be effective for all the open positions as on and from October 22, 2008 (Begin of Day) instead of October 21, 2008.

Members are advised to take note of the above.

For any further clarifications members may contact the following officials of the Clearing Corporation:

Mr.Atique Khatri & Mr. Purab Sata

Phone Nos. 26598214 / 26598264

Fax: 26598242

For National Securities Clearing Corporation Ltd.

Aparna Bhat

Manager