PIX: Thackerays, Mulayam Singh at the Bachchan bash

Amitabh Bachchan's friends from the political and corporate world joined in his opulent birthday celebrations on October 10 that took place at Film City in Goregaon, a western Mumbai suburb.

Natasha Poonawalla, one of the most glamorous A-listers of the Mumbai party circuit, was accompanied by her industrialist husband Adar Poonawalla.

Uttar Pradesh Chief Minister Akhilesh Yadav was joined by his father, Samajwadi Party chief Mulayam Singh Yadav and industrialist Anil Ambani, a close family friend of the Bachchans, as they were led to the party by their armed security guards.

Shiv Sena supremo Uddhav Thackeray was accompanied by wife Rashmi and son Aditya.

Socialite Parmeshwar Godrej, renowned for her lavish parties and world-famous friends, was present at the party with her industrialist husband, Adi Godrej.

Noted sarod player Ustad Amjad Ali Khan poses for pictures with sons Amaan and Ayaan.

Birla group scion Yash Birla and his wife Avanti joined the celebration.

Bal Thackeray's daughter-in-law, Smita Thackeray, was escorted by her son Rahul.

Chhagan Bhujbal, Maharashtra's minister of public works and special assistance, was also present at the party.

Sahara founder Subrata Roy's wife Swapna, sons Seemanto (with his wife Chandni Roy) and Sushanto, were present to wish the Big B, who's a close family friend.

Journalist and India TV founder Rajat Sharma attended the party with his wife Ritu Dhawan.

The Ambani matriarch Kokilaben is all smiles for the cameras as she makes her way to the venue.