These are some of the books..

Pathfinder for NDA & NA Entrance Examination

For GK- Manorama Yearbook 2015 by Mathew M is Best.

Mathematics for NDA and NA: National Defence Academy and Naval Academy by R S Aggarwal

Objective General Knowledge & Current Affairs (Level 1) : Useful for UPSC / State PCS / CSAT / Bank PO / NDA / CDS / MBA (English) by Disha Experts

NDA INA Practice Papers: Conducted by UPSC (English) by Sachchida Nand Jha

Hi Shivam,

NDA is a national level exam for entry into the defense forces. It is highly competitive and so requires smart preparation, clear concepts and thorough knowledge in General Ability.

Firstly, start by brushing up your mathematical fundas of 12th standard. Questions asked have medium to high difficulty level and so require proficiency in 12th level mathematics. Practice R.D Sharma to complement your NDA prep.

Next, English covers topics of vocabulary, grammar, comprehension where they basically test your command over the language.Reading newspapers and magazines helps to increase your reading speed, you can use Flash cards to increase Vocab.

General Knowledge covers vast areas of History, Polity, Geography, current affairs, General Science. Be aware of the latest developments in the field of arts, sports, literature. You can pick up Lucents GK for this ; it covers most of these areas in depth.

Lastly practice previous years question paper so you get a fair knowledge of what to expect.

Arihants Pathfinder is a good handbook for this exam prep.

hope it helps!!

Good luck!

Dear Shivam,

You can refer to Arihant books to prepare for NDA exam and for general knowledge you can refer to O.P Khanna.

Good Luck!!