MUMBAI: India's richest man, Mukesh Ambani, has bought his wife a birthday present of a luxury jet with entertainment cabins, a sky bar and fancy showers.

Mr Ambani, who owns the country's biggest private company, Reliance Industries, gave the $A66 million Airbus plane to wife Neeta on her 44th birthday, the Mumbai Mirror newspaper said.

The jet is custom-fitted with an office and a cabin with game consoles, music systems, satellite television and wireless communication.

Mr Ambani is building a $A1 billion home of 27 storeys —for a family of six — in Mumbai