evidence: India's richest man is bringing Rihanna and 1,200 guests to a pre-wedding bash for his son JAMNAGAR, India (AP) — It might be the biggest party this small west Indian city has ever seen. As billionaire industrialist Mukesh Ambani prepares for the wedding of his son this summer, he's expecting billionaires from around the world, heads of state, and Hollywood and Bollywood royalty to attend a three-day bash in the family's hometown, starting Friday. [...] The 66-year-old Mukesh Ambani has begun handing over leadership to his sons and daughter. Elder son Akash is now chairperson of Reliance Jio; daughter Isha oversees retail; and younger son Anant has been inducted into the new energy business.