Anglo Irish Bank has asked a court in the US to deny David Drumm a discharge under US bankruptcy laws.
Mr Drumm filed for bankruptcy last year and the court has been examining his case that he should be allowed to walk away from more than €10m in debts he owes to his former employer.
However, the bank has filed papers urging the judge to deny him the protection of the court.
The bank says Mr Drumm committed fraud in connection with the 'Maple 10' investors.
These were people who were given loans by Anglo to buy shares in the bank.
The bank says the application by Mr Drumm was a fraudulent attempt to avoid serious risk to himself, as well as other bank directors and favoured investors.
The judge will now have to decide whether the bank's claim merits a high-profile bankruptcy trial, at which Mr Drumm would have to account for many of these alleged actions.
