Utkal University

Christ University is India's no. 1 university to pursue BBA. If you get it, nothing is as better as it.

iitm offers mba in tourism management

You should do hospitality and tourism course for the same.
Best of luck.

Yes it is a good Institution for travel and tourism and holds a good brand name. However, placements there are highly dependent on your academics and performance.

You should study well in B.Com. You need to score well in CAT and you can choose travel and tourism management in higher rank college as it is a very passionate job. You need excellent proficiency in English. You can also do it from abroad, for that you need to score high in GMAT exam.

You can try for a change in the same company in some another department.

MBA is a postgraduate degree of 2 years in majority of universities and you will take 2 years to complete it as you will not get any exception/ relief in studying of courses because of your P diploma in Travel & Tourism.

you can pursue an undergraduate diploma after your 12th as well, but if it is a post-graduate course then you need to finish your Bachelors first.

Travelling indeed is an adventure on its own and what could be better than being offered a jobs that would include travel as an integral part of the profile.
Such careers not only offer lucrative packages and experiences but also keeps you away from the monotony of a desk job.
Please refer to the link for details:
https://www.shiksha.com/7-jobs-that-pay-you-to-travel-across-the-world-article-4224-1