BCA

Kindly visit this link:
https://www.shiksha.com/it-software/colleges/bca-colleges-kolkata

Kindly go through below link to find colleges in Maharashtra:
https://www.shiksha.com/it-software/colleges/bca-colleges-Maharashtra

Here you didn't mention the name of the college. Kindly contact your college administrator or senior students. They will give you the information about the college timings.

You need to mention the name of the college in which you are seeking admission. Generally, the interview process for most colleges is just a formality, they will provide you admission no matter what.

Yes, you're eligible to apply for admission into IEM for BCA. A candidate scoring passing marks in +2 are eligible for admission into this college for BCA course.

Yes, you can get admission into Patna Women's College for BCA with 59%. You're eligible for admission into this college.

Generally, they'll ask about you. Why do you wish to pursue BCA? Have you ever done programming? Do you know any programming languages? They might ask you some syntax of some languages if you're aware about the languages. The purpose of this interview is to check your communication skills, so be confident. It doesn't matter if you have any experience in programming while pursuing BCA.

There are many colleges which provide admission to students from the non-mathematical background. So, you can try seeking admission from colleges over there. For college names, visit https://www.shiksha.com.

B.Tech has much more weightage than BCA. But B.Tech is also costly and a year-long course than BCA. Which is not suitable in your case. BCA and B.Tech both the courses will provide you with the platform to get started with programming but they might not teach you exact ethical hacking. It is something that you might have to do on your own from external institutes.

You can join BCA to learn programming languages. Not a lot of colleges teaches ethical hacking to their students. You might have to learn that from either online courses or other institutions.