Vedanta Resources Plc
The company, which produces aluminium, copper, zinc, silver and iron ore, said Mehta's contract was due to expire on December 31.
Vedanta, controlled by metal tycoon Anil Agarwal, has been led by Mehta since October 2008. The company has operations in India, Zambia, Namibia, South Africa, Ireland, Liberia, Australia and Sri Lanka.