Hi Gautam, and Prithi and Aditi and Gautam (from Jharkhand),
I added Cornell University's School of Hotel Administration online program, with undergraduate and graduate courses and degrees listed, particularly financial ones - http://www.hotelschool.cornell.edu/academics/ - to the 'Hospitality and Tourism' World University and School page - http://worlduniversity.wikia.com/wiki/Hospitality_and_Tourism - as a reference. These courses in this program (which cost money), many of which would be useful for tourism on cruiseships (which are big hotels, in a sense - per your G+ profile page), could give you ideas about what courses you might explore in the future.
I also added to the WUaS Hospitality and Tourism wiki page the MIT OCW Sloan School of Management courses - http://ocw.mit.edu/courses/sloan-school-of-management/ - all of which are free for the self-motivated learner. Adapt from this for what you might like to learn?
With your experience in the tourism industry in India, would you like to teach some of these courses online in a Google + group video Hangout at WUaS, or develop a few, related, tourism instructive videos on your own?