India, Oct. 26 -- For nearly three years, JP Morgan Chase has picking up the legal tab of Charlie Javice and Olivier Amar, the two convicted fraudsters who sold their financial aid startup Frank to the bank.

But the two have racked up an astronomical, nine-figure legal bill that far exceeds any reasonable amount the two may have needed for their defense, the bank said in a court filing late Friday. Chase shouldn't have to pay and its agreement as part of the startup purchase to shoulder the costs should end, the bank argued.

According to the filing, Javice's team of lawyers across five law firms have billed JPMorgan approximately $60.1 million in legal fees and expenses, while Amar's lawyers have billed the bank roughly $55.2 million in...