Hospitality & Travel

The field you have chosen is quite nice and has a good career and scope. In fact as you have already done marketing it is easy to understand and has a more job opportunity.
You can also check out some of these courses in which you can do MBA with a good career graph:
1 .Masters in International Business
2. Masters in Hospitality Management
3. Masters in Personnel Management
4. Masters in Public Relations
You can get job after tourism in the field of tour and travel department as well as airport.
Some of websites like:
Makemytrip.com
Yatra.com

Some good colleges are listed:
- IHM- Mumbai.
- IHM- Delhi.
- Indian Institute of Hospitality & Management- Thane.
- Rizvi College of Hotel Management- Mumbai
- IHM- Meerut, and many more institutes.

Tourism courses across the world are highly demanded courses. In India, government institutions like IIHT have many campuses. Secondly, Pearl Academy, Delhi is the best institute for tourism management. In South India, Pondicherry University offers tourism course. Therefore, choose the best one accordingly.

Traveling indeed is an adventure on its own and what could be better than being offered a jobs that would include travel as a 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

Both Age and present qualification are not on your side. However, first complete your 10th through NIOS and then you can do some Diploma in Hotel Management.

In India, there are very few colleges offering Masters in Hotel Management. You can try your luck at NCHMCT.
LBIIHM in Delhi also offers M.Sc in Hotel Administration & Hospitality. For this program, there is no written test, Only a personal Interview.