India's top billionaires, including Gautam Adani and Sunil Bharti Mittal, mega stars from film industry such as Amitabh Bachchan and Shahrukh Khan and cricketing icons from Sachin Tendulkar to M S Dhoni are among those invited for pre-wedding celebrations of Mukesh Ambani's youngest son, Anant early next month. Ahead of the wedding ceremony in July, guests from around the world have been invited to three-day pre-wedding festivities beginning March 1, at Gujarat's Jamnagar, which houses Ambani's mega oil refineries.