Is there any (-)marks in NDA?

yes there is a negative marking like other competitive exam

=1)there are 4 alternatives for the answers to every questions,so every wrong answer there is .33 marks deducted to that particular question

2)if the candidate give more than 1 answer,then it would be treated as wrong answer,even 1 of the answer given by the candidate is right,will be treated as penalty

3)if blank answer is given i.e left blank by the candidate then no marks would be given to that question

question paper pattern=

maths=300 marks

general ability=600 marks(physics,chemistry,history,geography,current events)