Government & Defence Entrance Exam

No, computer subject is not important for NDA exam.

Depending upon the cut-off score card varying accordingly, so check the latest cut off.

No girls can not appear for NDA. Actually, NDA is only for male candidates. You can appear in CDS after your graduation.

There is no reservation for any category, because here you are talking about the one of the most prestigious institutions of our country for which any case and religion doesn't matters, so work on yourself became able to qualify the written, interview and medical.

First, this is that both careers are very different from each other NDA stands for The National Defence Academy is the Joint Services academy of the Indian Armed Forces, where cadets of the three services, the Army, the Navy and the Air Force train together before they go on to respective service academies for further pre-commissioning training. The NDA is located in Khadakwasla, Pune, Maharashtra. While IT is a kind for graduation in IT.

NDA stands for national defense academy.
The National Defense Academy is the Joint Services academy of the Indian Armed Forces, where cadets of the three services, the Army, the Navy and the Air Force train together before they go on to respective service academies for further pre-commissioning training. The NDA is located in Khadakwasla, Pune, and Maharashtra.

To gain something, you always need to work above than average just to practice a lot focus on the syllabus deigned for written examination especially on your mathematics. But, qualifying for NDA is not all about written examination you also need to be prepare yourself for SSB mentally and physically both you really need to put you're a lot of efforts and make yourself mentally and physical fit also work on your personality and develop officer's like qualities.

17th November, Sunday, 2019.
You can enrol for this exam online.

For becoming an IPS officer you need to clear the IPS exam which is held by Union public service commission (UPSC) every year. It is a very competitive exam with more than 100000+ candidates taking the exam out of which under 200 are finally selected.
This exam completes in 3 steps:First step is prelims exam , it is objective (popularly known as CSAT).
Second step is mains exam , it is subjective (Also known as Mains).
Third step is personal interview.
I hope this helps
Prepare well for the exam
All The Best.

The syllabus for UPSC Civil Services (IAS, IPS, IFS, IRS, etc.) is the same for any graduate. There are 3 levels in the selection process starting with the Prelims, then Mains and finally Personality test. You may refer this year's (2019) notification for civil service exams from the official website of UPSC- https://upsc.gov.in/examinations/