Eligibility for admission to B.Sc in Hospitality Managment in most colleges is pass in class 12 (with the required cut-off) from a recognised board or equivalent. NIOS is eligible in all colleges unless it is specified.

Since your interest lies in BSc Hospitality and Tourism, I would suggest you appear for NHCM JEE. NCHM JEE is a national level exam conducted once a year by the National Council for Hotel Management and Catering Technology(NCHMT) for admission to undergraduate courses in hospitality. Candidates giving NCHM JEE 2019 can take admission in two undergraduate courses - B.Sc. in Hospitality & Hotel Administration(Generic or Specialization).

Please read complete details about it from the below link. In case of any doubts, do get back

https://hospitality.careers360.com/exams/nchm-jee