Encouraged by India's new business-friendly government, the four siblings who control Hinduja Group, a multinational conglomerate that London-based brothers Srichand and Gopichand co-chair, say they are ready to invest as much as $10 billion in reviving stalled infrastructure and power projects. The clan's wealth is up, partly on a rebound in the auto sector that boosted their Indian truck-maker Ashok Leyland's shares. Value of their stake in IndusInd Bank jumped too, and is now worth $1 billion. In July, their oil and gas unit Gulf Oil India listed its lubricants business.
Fast Fact: Their London-listed Optare has supplied six electric buses to London's bus fleet.