According to Student Handbook of NIT Calicut for the year 2018.

For admission to B. Arch. programme of NIT Calicut through JEE, the candidate should have secured a rank in JEE (Main) 2018 Paper- 2 and satisfy at least one of the two criteria given below: 

1. The candidate is within the category-wise top 20 percentile of successful candidates in their respective Class XII (or equivalent) examination of respective stream and Board with Mathematics as compulsory subject. Further, candidate should have passed each subject individually.
2. The candidate has secured minimum 75% (for GEN or OBC-NCL) or minimum 65 % (for SC, ST or PwD) of aggregate marks in the Class XII (or equivalent) examination of respective stream and Board with Mathematics as compulsory subject. Further, candidate should have passed each subject individually.