hello aspirant

well certainly NCERT is not enough for you get a good rank.well you can surely qualify for the exam by only following ncert textbooks.if you want to secure good marks in the MNS examination then you have to go through other sources and sample papers and even question banks .and have a schedule for covering all the topics.

hope this helps!

Hii Tanuja!
Actually, NCERT is well and good to study when you just aim at clearing the cutoff. But, for getting good score and rank, I would suggest you to go beyond ncert and grab some extra information. Also, solve as many question banks as you can and previous year question papers as well. This will help you crack the exam with good rank.
Hope this helps.
Good luck!