Pranab Mukherjee came, as did P Chidambaram. Also spotted were Shah Rukh Khan, Amitabh Bachchan, and Anil Ambani.
Mukesh Ambani's daughter Isha is set to tie the knot with Anand Piramal in what is being dubbed as 'the grandest wedding of the year' today.
The duo will get married at Ambanis' uber-luxurious home Antilia in Mumbai -- that has been decorated for the big day.
The wedding will see whos-who of Bollywood, Indian politicians, businessmen and more. Till now, Amitabh Bachchan was spotted at the venue with wife Jaya, daughter Shweta and grand-daughter Navya. Aamir Khan was seen with wife Kiran Rao. Kiara Advani, who is said to be a childhood friend of Isha's was among the first guests to arrive.
Also spotted were newlyweds Priyanka Chopra and Nick Jonas. Aishwarya Rai Bachchan also came with husband Abhishek and daughter Aaradhya. Shah Rukh Khan's wife Gauri and Alia Bhatt was also seen.
Sachin Tendulkar was also seen with family.
Among the politicians, former Indian President Pranab Mukherjee was spotted along with Mukesh's younger brother, Anil Ambani. P Chidambaram was also seen.