hey amlan,As per previous year data, unreserved category candidates had to score at least 119 marks in NEET 2018 in order to get equal to or above the 50th percentile and reserved category candidates had to score at least 96 marks in order to get equal to or above the 40th percentile whereas candidates belonging to PwD category had to score at least 107 marks as per the qualifying Cut off requirements and this year the cut off for unreserved physically handicapped canditates have to be above the 45th percentile and that is expected to be between 107 to 118, hope this helps to calculate. Good luck