hi,

I assume you are asking about maulana abul kalam ajad university of technology cet exam which was earlier known as wbut cet, see syllabus of the entrance test is different as per group wise ,

there is 5 groups and general aptitude, logical reasoning and english is common to all, group b, c, d has mathematics or pcb or pcb, however entrance test is mcq based and you need to study about mathematics or pcb from your 12th books, for general aptitude and logical reasoning follow disha experts guide, or you may study from 10th standard mathematics books, like objective mathematics by amitabh mitra, for english grammer section any good book of grammer will be preferable.