NDA

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.

Yes, candidates who have completed the class 12th from a recognised board or equivalent exam are eligible for NDA exam. Class 12th candidates are also eligible for NDA exam. Your age should be in between to 16.5 years to 19.5 years. You must have a citizenship of India, Nepal or Bhutan.

NDA (National Defence Academy)
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.

Eligibility Criteria for TES Technical Entry Scheme. Education: Candidates who have passed 10+2 Examination or its equivalent with a minimum aggregate of 70% marks in Physics, Chemistry and Mathematics.
For joining NDA, you need to clear the written examination which is conducted twice a year.
But you need to at least score about 85% in PCM to get a call letter for SSB interview of TES 10+2 entry.

Kindly visit this link:
https://www.ssbcrack.com/2016/05/nda-vs-tes-which-is-a-better-way-to-join-army-after-12th.html

Useful NDA written exam tips to help you clear the examination:
# Solving previous years' question papers will help much.
# Buy NDA written exam guides.
# Learn the shortcuts when it comes to Mathematics.
# Time management is of key importance.
# Beware of negative marking.
# Work on your space management skills.

Hello Dipansh,
Go for "Pathfinder" by Arihant.

No you can not give NDA exam after 10th, for NDA you must be 10th passed.