Hello,


Since you have already done 3 years diploma degree in travel and tourism there is no need for doing it again.But still if you wish to go for the course then you will have to check eligibility criteria of various colleges.Each colleges have different criteria.
The basic eligibility criteria for B.B.A in Tourism and Travel  Management is to pass degree in Higher Secondary Examination or 10+2 in any stream and from a recognized college or university.

I hope this helps.