hi rajat, it all depends on whether you have state quota or not , but i would suggest that aim for 520 plus to be on a safer side for your category, its high , i know but absolutely doable , so aim for it.NEET 2018 Examination is most likely to be held on 10th May (Thursday) 2018 . NEET 2018 Application Form will be released in the month of January 2018.CBSE conducts NEET for admission across all medical colleges in india except aiims,and jipmer.The exam pattern is as follows:-

physics-45 questions each carrying 4 marks

chemistry-45 questions,each carrying 4 marks

and biology 90 questions each carrying 4 marks as well.hope this helps good luck