Adjustment of free-float factor for ONGC in SENSEX

In view of the successful completion of the ONGC Initial Public Offer (IPO) and the consequent allotment of shares amounting to 10% of the paid up equity of ONGC Ltd., the Stock Exchange, Mumbai will make a special adjustment in the free-float factor assigned to ONGC Ltd. The new free-float factor and approximate weight of ONGC Ltd. post adjustment is as below:

NAME	Free-float factor before IPO	Free-float factor after IPO	Approximate weight in SENSEX before special adjustment	Approximate weight in SENSEX after special adjustment
ONGC	0.05	0.15	2.0%	5.8%

The change will be effective from 5th April 2004.