Missess I'm sad to hear that u have been cheated and moreover threatened by those idiots.There is a phrase in Nepali...Anyaya sahanu paap lai nimtyaunu ho...Tara tyo bhandaima just don't take any action right away.Plan everything.First ,talk to the president or some resposible people of nepali community of your state.Let them know your condition,don't hide anything .With the help of your friends, try to find a Nepali LAwyer or someone who knows law, who either won't charge u or charge u less for consultant.Since u have also worked while u r in F1 visa don't go directly to INS or somewhere before being 100% confirmed that no harm will be done to your career as in your life that is more important.This is just a bad phase of your life which will ultimately go away.So before taking any action,discuss with some people or even a lawyer and take action as this is a delicate situation. Aawesh ma ayera sabai kura confirm nabhaikana kunai kam nagarnu! Hope u get justice! In the future,if u work never show or tell your weak points to these idiots :-) My two cents suggestions!