Hello,
The diploma in Travel ans tourism is a 1 or 2 year undergraduate  course. That focus on analysis and research om the tourism Sector. And the eligibility criteria, duration of course all Vary college to college so Kindly mention your college name.

Eligibility criteria :-

• A candidate can apply for diploma in Travel and tourism once he/she complete 12th, some college even offer diploma for same after 10th also
• Some college take admission on the basis of Entrance exam

Admission :-

• Admission of diploma in Travel and tourism in some top colleges taken on the basis of Entrance exam or merit score .
• And also in some colleges you can take direct  admission in same if you fulfill the eligibility criteria .

Fee structure:-
As you haven't mentioned  the colleges name so it can be difficult to tell you exact fee structure.
But the fee for course diploma in Travel and tourism can cost from 2k to 1 lac.
Career opportunity:-
After Completing the diploma in Travel and tourism you can work as
1) Travel Agent
2) Travel planner
There are many  Company that hired  candidate for these roles.
All the best!!