Hello Gautamsoni,

Yes, you will need the question paper for checking answer key for

NDA paper.

It will be easy if you have marked your answer on the exam paper 

during the exam otherwise you have to check by remebring the 

answers you have done in the Exam paper.

Thank You.

Hope it helps.

HI there,

you should have the question paper to check the answers for the questions and i you have marked the answers what put in the question paper it will be easy to check the answers and how ever you wil have key sheet whether it may be come in news paper or in the internet you can check key sheet through the official website