MCA

Dear,
As per your query, you are not eligible for the M.Arch programme, one should have B.Arch degree with min 50% if you want to apply in any of university.
So, you need to choose the programme related to your education background.
All the best.

B.Sc is a Bachelor's degree and M.Sc is a Master's degree.

As you are doing banking preparations and you are interested in making career in banking sector you are advised to seek job in banking sector by appearing in PO and clerical services examinations.

Hi Shivani,
Check out the link given below for details:
https://www.shiksha.com/getListingDetail/14346/course/course-Master-Of-Computer-Applications-Mca-Chandigarh-India

Hi,
All information you need can be accessed from here:
http://www.criteria.in/nimcet-exam-2017-online-apply-eligibility-exam-dates/
For preparation, you can first attempt last few years' papers and see how much you know and what all needs to be practised and then decide the time or coaching you need to crack it. There could be specific sections or over all preparation.

MCA admission in majority of good universities is based on entrance examinations. The eligibility for MCA admission is as follows: " Candidate should have cleared minimum three year duration Bachelor's Degree awarded by University recognized by University Grants Commission or Association of Indian Universities in any discipline with at least 50% marks in aggregate or equivalent (at least 45% in case of candidates of SC and ST categories and Persons with Disability) and should have studied mathematics as one of the subjects at (10+2) level or at graduate level exam.”

No, for MCA you need maths in your 10+2+3 level.

IT sector in India is still largest new job creating Industry. Although IT is loosing it's prime position, it is still a good career option. MCA is a preferred qualification by Indian IT industry. Therefore, you can go ahead with BCA MCA.