Thanks a lot for your comments guys.
No he doesn't want to cheat the bank, he do intend to pay all his debt. His salary here is also not bad but he got an offer 1.5 times more that he is earning at the moment so he doesn't want to loose his chance, but, unfortunately he is not able to leave Qatar without settling his loan. What I understand if he continue to pay his monthly installments in future, the bank won't file any case against him, am I right?
Thanks again