FILE PHOTO: Arif Naqvi, Founder and Group Chief Executive of Abraaj Group attends the annual meeting of the World Economic Forum (WEF) in Davos, Switzerland, January 17, 2017. REUTERS/Ruben Sprich

LONDON (Reuters) - The Pakistani founder of Abraaj Group, once one of the largest emerging markets private equity investors, has been given more time to raise a 15 million pound ($19.5 million) bail by a London court, a court official said on Friday.

Arif Naqvi was arrested in Britain last month and has been awaiting possible extradition to the United States where he faces charges of defrauding investors.

Naqvi was remanded in custody after the bail hearing at Westminster Magistrates Court on Friday was adjourned until May 17 because he failed to pay the bail conditions, the official said.

On May 3, Westminster Magistrates Court granted Naqvi bail on condition that he pay 15 million pounds and an additional surety of 650,000 pounds, as well as surrendering his Pakistani passport, remaining under 24-hour curfew at an address given to the court and wearing an electronic tag, a prosecution spokesman said at the time.

Dubai-based Abraaj had been the largest buyout fund in the Middle East and North Africa until it fell apart last year after a dispute with investors.

Naqvi has previously maintained his innocence. Under the U.S. charges, Naqvi is accused of inflating positions held by Abraaj in order to attract greater funds from them, causing them financial loss.

($1 = 0.7676 pounds)