The Ambanis are building a Hindu temple complex in the city, the Reliance Foundation said on social media.
Anant, 28, who also serves as a director on the boards of several Reliance-owned firms, is expected to marry Merchant, 29, later this year.
Ambani held the most expensive wedding to date in India for his daughter in 2018, which reportedly cost US$100 million and saw US pop megastar Beyonce perform.
US illusionist David Blaine is also expected to be part of the entertainment for guests, who include Microsoft founder Bill Gates and several current and former political leaders.
Also among the invitees is Disney chief Bob Iger, following a deal agreed Wednesday between Reliance Industries and Walt Disney to merge their Indian media businesses.
The merger will create a US$8.5 billion entertainment giant in the world’s most populous nation and fifth-largest economy.
