Bachelors

Yes, it's there in the university.

Kindly predict your college through this college predictor. The rank predicted might not be accurate, but it certainly gives an idea to the aspirant.
https://www.shiksha.com/college-predictor

Yes, you can but then MCA would be of 3 years.

Yes, you can very well pursue this course. Infact, it has a great career option ahead.

Hello,
You can apply online or offline for the course. The college will call you for admission after you application is scanned.
Thank you.

Hello,
Candidate must have completed graduate in Medicine/ Dentistry/ Ayurveda/ Homeopathy/ Siddha/ Veterinary/ Nursing/ Physiotherapy/ / Pharmacy/ Engineering or Post graduates in Statistics/Biostatistics/ Demography/ Population Studies/ Nutrition/ Sociology/ Economics/ Psychology/ Anthropology/ Social Work/ Management/ Law.
Admission Process:
Written Test
Eligible candidates need to appear for the Aptitude Test conducted by the institute.
Written Test
Shortlisted candidates will be called for Personal Interview based on the score in written test.
Final Selection.
Good luck.

You can apply. However, in UK you can finish your UG in three years. In Canada, you need to do four years. It is better to complete UG in UK and then proceed to Canada for Masters.

You are eligible, but you have to show proper reasons for the gap in you student career. If you do not have any proper reason or a gap of more than 2 years, then you are not eligible.

I would suggest you to focus on your UG at the moment, because later on I do not want you to be under pressure to cope up with both of them and hamper your results.

You may check the below link:
http://www.openuniversity.edu/
Hope it helps
Thank you.