Mumbai, Jan 19: The engagement ceremony of Billionaire Mukesh Ambani's youngest son Anant Ambani with Radhika Merchant was held at Antilia on Thursday. In December, Anant Ambani, the youngest son of India's biggest business tycoon Mukesh Ambani, had roka ceremony with Radhika Merchant, daughter of industrialist Viren Merchant. Maharashtra | Aishwarya Rai Bachchan along with her daughter Aaradhya, Gauri Khan & her son Aryan Khan, and Kiran Rao attended the Gol Dhana ceremony of Anant Ambani and Radhika Merchant at Antilia in Mumbai earlier this evening.