Let me be clear here. The states I mentioned above do CGFNS evaluation based on your Nepal's qualification and if you are eligible then you can appear on NCLEX exam but some states like Nebraska, Iowa do require you to appear for CGFNS exam no matter what qualification you have in Nepal. I mean they do not allow you to appear for NCLEX exam based on Nepal's qualification, you must compulsorily appear for their(state's) CGFNS exam.