Vedanta Ltd, the Indian unit of diversified energy group Vedanta Resources PLC, reported a consolidated quarterly profit, as revenue surged, driven by improved commodity prices and higher zinc volumes.Consolidated net profit stood at Rs2,988 crore in the fourth quarter ended 31 March, compared with a loss of Rs21.104 crore a year earlier, the metals and mining group said on Monday.Analysts on average expected Vedanta, which recently completed the buyout of Cairn India Ltd, to post a profit of Rs2,667 crore, according to Thomson Reuters data.Consolidated revenue surged about 35% to Rs24,612 crore.