I have got 65% in 12th science & 48% in pcm and also have 9936 marks in imucet. Can I apply for nautical science?

You need 60% aggregate marks in Physics, chemistry and mathematics to be eligible for giving this exam. Along with that you must have a minimum of 50% marks in English. If you belong to a reserved category like SC/ST you might get some relaxation but that relaxation would not be applicable for Engli

However, given that you received a 48% in PCM, it's possible that you don't fulfil the minimal standards for admission to some institutions. To find out if your grades satisfy their requirements, it is advisable to carefully examine the eligibility requirements of the individual institutes you are i