MCA

Yes, you are eligible for the same. There are not many eligibility criteria that needs to be fulfilled by a MCA aspirant for securing admission to the course. You need to have passed Bachelor degree course in computer applications BCA or any related fields. In case of merit based admission process, the candidate need to have secured a minimum aggregate marks as per the institutes requirement in last qualifying examination. In case of entrance exam, the candidate is must to clear the entrance exam and subsequent rounds such as GD and PI to secure admission in MCA course.

Admission is based on the marks obtained in 10+2. And not on entrance exam. PFB the details :
https://www.shiksha.com/it-software/course/master-of-computer-applications-banasthali-vidyapith-Jaipur-113944.

Yes, you're eligible for it.

Both types are available- full-time and distance course. You can choose according to your convenience.
Hope this helps you.
Be free to share any problem you have.
Good luck.

Yes, you can easily get admission into Techno as you are already studying maths in your +2. You just need to make sure that you score atleast 50% in your +2 to be eligible for Techno. If you want to learn programming languages which you will be studying in your BCA course then you can check out this app which is specially designed and developed for BCA students. It has programs and assignments of languages like C, C+ and Java with their outputs. You'll be studying these languages in your 3 years of BCA. https://play.google.com/store/apps/details?id=technark.bca_courprogramming

It depends upon your interest, if you are interested in technology and want to become more professional in technology after BCA then go for MCA or if you have interest in management area then go for MBA. Both these courses will have a good salary, but it depends on the skills of the candidate.

Yes, it can based on your preparation.

Can you please clarify which examination you want to qualify?

Hi!
Previous year question papers are not available online for this institute. I would rather advise you to consult the institute itself for the information.

Hi, Please find the link below:
https://www.shiksha.com/university/national-institute-of-technology-durgapur/nimcet-exam-question-papers.