OP Jindal was an entrepreneur who ‘talked to machines’. It would have been an unlikely description for a farmer’s son. But growing up in Hisar, Jindal showed early liking for technology. He started off his career by setting up a bucket manufacturing unit in 1952. From there on, he would build a pipe factory and later a steel plant. Jindal entered politics in 1996. Today, his legacy is shouldered by four sons seen here— Naveen, Ratan, Prithviraj and Sajjan. While each manages a company of his own, an elaborate cross-holding enables each brother to have a stake in his sibling’s company, a masterstroke by the patriarch. His youngest son Naveen is the most high-profi le with well-followed sporting and political lives