Pakistan\'s benchmark stock index, the Karachi Stock Exchange 100 Index, rose 2.35 per cent at the close yesterday. The index of 100 companies traded on the Karachi Stock Exchange rose 264.97 to 11,530.00. Among the stocks in the index, 83 rose, eight fell and nine remained unchanged. Gains in the Karachi Stock Exchange 100 Index were led by Oil & Gas Development Co, Nestle Pakistan Ltd and Mcb Bank Limited.