I had completed my BBS (3 yrs) and was studying at masters level in Nepal. Then I moved to US.

I want to continue my study.

I looked at a university's curriculum and have found that I will have to study for more than 3 more years to get a bachelors degree here.

Is there anybody who has been in similar situation? Please suggest what I should do.

Talk to your advisor. I do not what is your major. I was in the same situation. I took some undegrad classes and joined the masters, 3 sems in undergrad to be precise.

Tell them you already have a degree and the current course is not challenging. Tell them your goals in the field. Should work out.

One last thing need to have good GRE or GMAT depending upon your field. Then assistanship should also work out.

Peace