Question

what are the basic required knowledge to crack the exam of NDA..
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Answer 1

Hi,

NCERT History Class 10 book will be very effective while preparing for NDA exam. However, you can refer to other books such as:

Pathfinder for NDA & NA Entrance Examination (English) by Arihant Publication
NDA Examination (Solved papers up-to-date) (English) by Upkar Publications
NDA/NA Previous Solved Papers (English) by RPH Editorial Board
Quick Learning Objective General English by RS Aggarwal & Vikas Aggarwal
Hope this helps. Thank you.

this is 100% sure answer