Science

Do you want to go into any specific states college? If, yes do mention! WCC, Chennai offers M.Sc program in eight disciplines, MA in three disciplines and Integrated B.Sc + M.Sc programs at the PG level.
Students who wish to pursue M.Sc and MA programs must hold a Bachelors degree in relevant discipline from a recognized board. For admission to Integrated B.Sc + M.Sc program, candidates must have passed Class 12 or equivalent from a recognized board with Mathematics and Physics as compulsory subjects.
Admission to PG courses available in the college will be granted based on Merit in the Bachelors degree examination.

You can get a visa if you know anyone in Europe. Someone from there can help you if you know anyone. But you need to have someone from there who can help you out and also try for some consultancy and they may also help you out with this and also you need to clear TOEFL or IELTS.

Yes, after completing your Bachelor's degree, you can go for it.
Good luck.

IITTM would be the best choice for you. Check out their website.

No, this college does not provide offer the said course in distance mode.

Obviously, you are able to get admission in B.Sc IT/BCA. Actually, it depends on the college in which you want to study. Some colleges allow admission through entrances like BHU, DU, etc., some offer admission on the basis of marks, so search the college in your locality You may get a seat.

After completing 12th, you will able to get admission in B.Sc/BCA, these are the graduation courses, admission is based on your 12th marks, or entrances, for BHU, DU, etc. You have to face an entrance, after qualifying you can get a seat for these courses.

Hi,
The minimum eligibility criterion required for the course is graduation degree with a minimum of 50% marks in aggregate. Admission to B. Lib course in some of the top B. Lib colleges is based on the merit of past academic performance.
Top B.Lib institutes are:
Jadavpur University
Rajiv Gandhi College of Commerce.