According to the official websiite http://www.silvercollegeperambra.org/admission.php , admissions are based on the merit list prepared on the basis of the marks scored on your 12th. For studying B.Sc Food Technology, you should have completed your 12th with Mathematics as a mandatory subject. There is an intake of 36 students per year. Now the admissions have not started yet and so you have to wait for the official notification. Please keep checking the official website: http://www.silvercollegeperambra.org/