look at the bottom of the page

http://www3.uta.edu/fao/portal/?d=page&pid=sp46&parent=5

http://www.uta.edu/engineering/scholarships.php

http://www.utdallas.edu/enroll/financialaid/transfer.php?nocookies=false

there is a nepalese student association in UTA, try to contact them, they might give you good advice

have you tried looking into UNT, i have heard their scholarship is better than UTA or UTD

may be try calling the scholarship or admissions department