hii roy 

if you are addressing heritage institute of technology then i would like to say the eligiblity of the college the minimum eligibility criteria for student is you should have 10+2 examination passed with 45% marks in Physics, Chemistry, and Mathematics conducted by the Council of Higher Secondary Education, West Bengal or equivalent.

i would like to suggest dont just stick to minimum cut of while get higher it helps you for being safer side 

while mode of the admission is WBJEE Entrance Exam whilch is on April 22, 2019 and JEE (Main)

hope this helps