• My answer is as per admission bulletin from cmc website-https://admissions.cmcvellore.ac.in/process.aspx
  

Since the possible answers for each question are provided, you may wonder whether or not to guess the answer for questions you are not certain about. There is no negative marking and hence at times it may be worthwhile making an intelligent guess. That choice is yours and you have to decide how close to the options you are. In the computer based test for degree courses (Nursing, AHS degree courses), credit is given for questions not attempted (those left blank). The credit given is equal to 1/5 (0.2) of the mark forthat question.

So your score will probably be more if you leave out the questions about which you know
nothing. Remember, however, that a correct answer will be given one full mark. So if you have some
knowledge of the question, and are able to eliminate one or more of the possible answers, your chances of guessing the correct answer increases. It may be to your advantage to attempt such questions.

Hello dear, 

Thanks for contacting us. 

No, in CMC Vellore there is no negative marking hence you can answer all the questions including the questions, the answer of which you don't know.

All the best!