Tycoons from around the world, heads of state, as well as Hollywood and Bollywood stars have descended on the small western Indian city of Jamnagar on Friday . Mukesh Ambani, 66, is currently the world’s 10th richest man with a net worth of $115bn, according to Forbes . All eyes are on Anant and his long-time girlfriend Radhika Merchant, 29, who will tie the knot in July .