Hi Asha,

The answer to your question is "NO".

You are at liberty to leave any question.But no marks will be awarded for the question you miss.Please find below the marking scheme of KEAM examination:

A. 4 marks will be provided for every correct answer

B.  1 mark will be deducted from the total score for each incorrect answer. 

C.  For un-attempted questions, no marks will be deducted, but in case of multiple answers, it will lead to the negative marking

So,I would advise you to attempt those questions which you are sure of.

Best of luck