NDA

UPSE conduct NDA exam twice a year, and you need to clear that, you can apply from 16.5 to 19.5.

Hello,Preparing for NDA is not just all about to prepare for written exam, you also need to prepare yourself physically and try to work on your personal development, try to build up some officers like qualities in you, first prepare yourself for written examination.
Go with the syllabus work hard, then make yourself ready for SSB interview.
Don't worry, if you put your hard efforts definitely you will find yourself in NDA one day
All the best.

No I don't think so
You need to have a good eye sight to get admission in NDA.

Here you get complete information about NDA exam eligibility and every bit of information about NDA exam
https://www.shiksha.com/exams/nda
Hope it guides you well.

Yes, you can appear for NDA examination, bit you are not able to become a technical officer.

It depends that how you perform in written exam and the most important in SSB interview. You need to keep in mind, they are not looking for any scholar, but they are looking for a leader. So, by qualifying JEE, no one can assure you that you would be able to clear SSB Interview. Let me tell you one thing. In a batch of 200 candidates in SSB interview, only about to 2 to 3 candidates were able to make for NDA. Don't worry word hard.
You will make it.

It is quite difficult, and since you have very little time better focus on the previous year and solve them thoroughly. Also, start preparing for your physical examination also. Go for running every day and do some pushups chin ups at least 5. You also have to prepare for personal interview.

There is no reservation for any category. So, to qualify, everyone has to score the same cutoff marks.

Hi,
Luckily, NDA is one of those rare organisations that do not have any reservation. The candidates are selected based on the exams' score.