hi,

In order to study bachelor of technology in computer science engineering or any other streams like electronics and communication/ mechanical engineering, electrical engineering/ civil engineering you must have studies physics, chemistry and mathematics as a compulsory subject in 10+2 course and must secured the required percentile of score as per different entrance test eligibility criteria. it does not matter whether you have studied biology or any other subject in as additional subject in 10+2 course ;  you must have pcm papers in 10+2 course to become eligible to apply for b.tech.

Hello,

Unfortunately, if you have take Mathematics Basics in class 10 you will not be eligible to take up Mathematics in class 11 and class 12. To be eligible to study B.Tech you must have pass 10+2 with Mathematics, Physics and Chemistry. Without Mathematics you will be not be eligible to appear for any Engineering ultimately you cannot get admission in B.Tech Computer Science and Engineering.