MCA

Yes, you are eligible but you should have maths in 12th.

No, you are not eligible.

There are so many options of good colleges in or near Delhi for MCA. Some of the colleges are as following-
Amity, NOIDA
Jamia
JNU - Jawaharlal Nehru University, Mehrauli, Delhi
Faculty of Computer Applications, Manav Rachna International Institute of Research and Studies, Faridabad
For more names, please click this link-
https://www.shiksha.com/it-software/colleges/mca-colleges-Delhi.

Hi,
Please confirm the college in which you wish to apply for better understanding. Admission process varies for every college.

That's not possible. Candidate must have Mathematics as a main subject and studied as full papers in Higher Secondary (10 + 2) level is a mandatory prerequisite. First Class Bachelors degree with at least 60% marks in aggregate, in any discipline.
NIMCET 2018 scores in order of merit, will be the only criteria for admission

If you have interest in doing MS, and you are confident to start and complete it now after this gap, you should definitely do it. But I'll suggest you to go for online courses because it's a 3 year course. After you complete your MCA the recruiters or companies will not consider the percentage of your 12th but only the MCA marks.

Hi, first of all prefer universities and later move to a college you need to score good rank for this and coming for best colleges, MITS-Madanapally, etc. Checkout this link for MCA colleges-
https://ask.shiksha.com/which-are-the-top-colleges-for-mca-in-Andhra-Pradesh-qna-4526993?referenceEntityId=4528963.

You can refer http://www.srmuniversityadmission.com/srm-university-managment-quota.html

Of course. My opinion is- Don't go for M.Tech. You already have MCA that is Masters degree. Search for a good job n do hard work in it to get early progress. All the best. Please like and follow bro.

Hi,
You can refer to this link for comparing the two colleges on various parameters-
https://www.shiksha.com/resources/college-comparison-250588-90435