India

Hi,
It is a personal choice based on your budget, career plans, your profile, admission requirements of the universities. Also, you won't find a BCA degree abroad, you will find applied computing, software engineering, computer science, etc.

Hi Shivangi,
I would suggest you to get a job and gain some work experience in India before you seek a job abroad. Also, know what you want and have clarity over your career plans, prepare accordingly. Check out leading international job portals and country specific SOL to know the current trends and professions in demand and what they seek in an applicant.

Kindly elaborate your question.

Yes, hotel management is a good course to pursue. To know about the scope, refer to the link mentioned below:
https://www.shiksha.com/hospitality-travel/hotel-hospitality-management/articles/your-career-after-doing-hotel-management-blogId-4630

Top aviation institutes are mentioned below:
1. Indian Institute of Aeronautics, New Delhi
2. Indian Institute of Aeronautics Science, Jamshedpur
3. Indian Institute for Aeronautical Engineering and Information, Pune
4. A.J.Aviation Academy, Bangalore
5. Indian Aviation Academy, Mumbai
To get into any of these institutes, you will have to appear for entrance exams.

Hi Chaitanya,
Admission requirements differ from university to university. If you meet the requirements and have a good profile you will secure a place. Majority of the universities will require GMAT or GRE and/or work experience.