Adani is among possible bidders reviewing preliminary information on the business, the people familiar with the development said, asking not to be identified as the information is private. Other Indian conglomerates are also evaluating whether to bid, one of the people said. State-owned entities NTPC Ltd., NHPC Ltd., Power Grid Corp. of India and Power Finance Corp. are working with an adviser to weigh selling their stakes of around 4% each, they said.