online

Hi,
Hospitality is a practical Industry and you can't learn anything unless you actually do it. Right from serving food to guest, cleaning a room, cooking food, to check out everything is practical and you will have to attend classes if you actually want to learn.
There is no such thing like online training in hospitality.
If you want to become a hotel Manager you will have to study Hotel Management then only you will gain the knowledge and experience of running a hotel successfully.
You can Pursue Bachelors in Hotel Management from premier Institutes of hotel Management in the country by qualifying the National Counsel of Hotel Management and Catering Technology Joint Entrance Exam.
According to the rank you get in the entrance exam you will get a particular IHM.

Ticketing and reservation has become a trending luxury that every travelers wishes to use. This process involves the use of the software and database. These ticketing process have opened up a lot of opportunities for placements in the field. This ticketing sector now has new options, use of technology, and right from designing for the various software, marketing, training, and skill sets to use this software for ticketing.
This is the main reason that the online ticketing process has brought about the ease at which people can book there trips and travel right from the comfort of their homes and also how the travel industry provides a one stop solution.
So, in conclusion the online ticketing as brought a good options for great placements offering good positions, salaries and growth.

Not really. In fact, you can select 3 of your choices from the provided list. Generally, your first choice will be given. You asked about security and supervision. Fact is that depends upon state to state or even centre to centre. Let me explain to you further; suppose you select there centres say A, B, C and you are allotted centre A. JEE main people would select a college which has enough infrastructure to conduct the exam. Now the actual exam will be conducted by that college faculties only. At Most one person from CBSE would be there. In some cases those faculties don't even no the rules of the exam. In some places those people make things very difficult by unnecessary formalities. Such practices are more in down south. In any case security and supervision will be exemplary. Or in other wards very very strict. There will be two check points. Please take your Aadhar card or School identity card, the latest one. Don't ever feel like fooling or any mischief. there's no room for nonsense. Don't carry anything except what is being allowed.
All the best.

I don't think that there are any colleges providing courses on ethical hacking. Still, if there are any colleges which provide courses on ethical hacking, I don't think that one should option for it.
Colleges, especially in India, provide a very formal and theoretical knowledge, which is not going to work in case of Hacking. Hacking is more of a mindset than a skill. If you have that Hacker mindset, then it doesn't matter that if there are any colleges for it or not. If you have that kind of mindset, then half the job is done, you now just need to harness it and let your curiosity lead you to improve your skill set. You have to read a lot, and practice a lot.
You need to practice a ton of practice. If you have that kind of mindset, you won't see anything else apart from hacking.
However, I do recommend you to clear you basics first, and then dive deep into Hacking culture. Don't try to skip the basics, otherwise you'll be a Script-kiddie.
And one more thing, don't enroll for any summer training in any institute. They will charge you a lot of money, and will teach you only the theoretical knowledge. Just save your money, and buy lots of books. And enroll in some good quality courses on the Internet which are free of cost.