By Vibhuti Sharma MUMBAI, Oct 28 (Reuters) - Asia's richest man Mukesh Ambani's telecoms and digital unit Jio Platforms is set to list in Mumbai on Wednesday, after its $3.2 billion IPO drew. [MUMBAI] Asia’s richest man Mukesh Ambani’s telecoms and digital unit Jio Platforms is set to list in Mumbai on Wednesday (Oct 28), after its US$3.2 billion IPO drew US$77 billion in bids in.