Mukesh Ambani caught the world’s attention when he forked out $600m on his son’s wedding, including a performance by Rihanna – but how did he become Asia’s richest person?

Mukesh grew his father’s polyester trading company, Reliance Industries, into a conglomerate. But when he died without a will, Mukesh had to fight his brother for control of the family business. BBC business editor Simon Jack and journalist Zing Tsjeng follow Mukesh Ambani’s story from living in a Mumbai slum to building the world’s most expensive private residence - featuring an ice cream parlour and an artificial snow room - then decide if they think he’s good, bad, or just another billionaire.