India's top 10 richest people

Rank 10: Adi Godrej ($6,800): His 114-year-old Godrej Group has a partnership with chocolate maker Hershey's.

Rank 9: Pallonji Mistry ($7,600): Pallonji Mistry, the Chairman of the Shapoorji Pallonji Group, is the richest person of Iranian descent. His signature project is The Imperial, two 60-story towers in Mumbai.

Rank 8: Kumar Mangalam Birla ($7,700): Aditya Birla Group is among the world's top 10 producers of cement and Asia's biggest aluminum producer.

Rank 7: Gautam Adani ($8,200): Gautam Adani is the chairman of the Adani Group, a leading trading and export company of India.

Rank 6: Sunil Mittal ($8,800): With over 230 million customers, Sunil Mittal's Bharti Airtel is world's fifth-largest telecom company, with operations in 19 countries.

Rank 5: Savitri Jindal ($9,500): Savitri Jindal is the head of Jindal Steel and Power Ltd.

Rank 4: Shashi and Ravi Ruia ($10,200): The brothers, Shashi and Ravi Ruia, sold their one-third stake in telecom unit Vodafone Essar for $5.4 billion in July, 2011 after their plan for listing the holding was opposed by Vodafone.

Rank 3: Azim Premji ($13,000): Tech tycoon Azim Premji of Wipro remains at No 3 even after donating shares worth $2 billion to his charitable trust, which made him one of Asia's top philanthropists.

Rank 2: Lakshmi Mittal ($19,200): Lakshmi Niwas Mittal is the chairman and chief executive officer of ArcelorMittal, the world's largest steelmaking company.

Rank 1: Mukesh Ambani ($22,600): Despite losing $4.4 billion, Mukesh Ambani's Reliance Industries, that struck a $7.2-billion deal with BP, holds the top spot with a net worth of $22.6 billion.