Tourism & 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. Master's 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
Read more: http://mbadiscussions.com/what-scope-doing-mba-tourism-right-choice-what-job-opportunities-after-doing-course-8294.html#ixzz4jNhhruMP

The best travel jobs allow you to earn income while exploring the world.
First a little disclaimer. If all traveling jobs were easy, everyone would be doing this. Many of these professions require passion, specialized training, time commitment, and talent. For those that dont, the pay just isnt great.
There is no magic way to instantly make lots of money traveling.
some job options are - :
1) Travel Tour Guide
You could consider getting a job as a local tour guide or tour assistant for an international company, either at a single popular location or for larger multi-destination tours. Or you can think entrepreneurial and start your very own tours! Maybe its the best un-marked surf spots, an awesome local hiking trip, or showing people the coolest bars and restaurants in town.
2) Foreign Service
Working for the foreign service (aka diplomat) or an intergovernmental organization (IGO) is one travel job that allows you to experience life in a different part of the world. Most of these government jobs are only open to people with university degrees or knowledge of foreign languages. Indian foreign servive by UPSC.
3) Teach English Abroad
Do you know how to speak English? You may not realize it, but professional English teachers are highly sought after around the world and the pay can be decent. However just understanding the language isnt enough, you generally need a college degree and a TEFL certification (Teaching English as a Foreign Language).
4) Travel Writer
Writing about travel seems to be a dream job for many, however its not something most people can just jump into. First, you have to be a great writer. Next, you need to learn about networking, pitching to editors, and all the other business stuff involved. Once you have those down, then its possible to write for magazines, newspapers, websites, or travel guidebooks. Copywriting and other types of writing are also options.
5) Work On A Yacht / Cruise Ship
Traveling the world while working on private yachts or large cruise ships is an awesome way to see some pretty exotic places. There are different types of positions available: deck-hand, stewardess, chef, tour manager, entertainment, engineer, and more.