Jaguar Land Rover Automotive Plc. (JLR), a unit of India’s Tata Motors Ltd., said its Chief Executive Officer Thierry Bollore resigned due to personal reasons.

Bollore will leave the Indian automaker’s British luxury vehicle unit JLR on 31 December, according to a stock exchange announcement.

JLR said Adrian Mardell will act as the interim CEO from today. He has been part of JLR for 32 years and a member of the executive board, it added.