Candidates who do not reside in India including OCI, PIO card holders and NRIs fall under International students. For such students, the eligibility criteria for TISSNET is that they should have secured a minimum aggregate of 50% in their 10+2 and 50% in their Graduation or highest qualification. For more information, please visit our page at: https://bschool.careers360.com/articles/tissnet-mba-eligibility-criteria . But to just answer your question, you will have to appear for TISSNET even if you are from Nepal.