Hello

You can download the NID BDES 2016 question paper with answer sheet from the link mentioned below

https://drive.google.com/open?id=0B1KRZzIXuA2pbkNtc2I2eDFES3c

Also if you want to take a look at other previous papers and model papers, please go through the following link 

http://davns.blogspot.com/2016/03/nid-2016-paper-answer-key.html?m=1

Hope this helps...