Hello,

Mathematics 2A and Mathematics 2B are two different subjects and the syllabus for these two are entirely different. You have to pass individually in Mathematics 2A and 2B. You have to score minimum 35% marks in a subject in order to pass in the exam. If you fail in Mathematics 2A the marks scored in Mathematics 2B will not be used to pass you in the exam. You have to appear for supplementary examination which will be conducted after the declaration of TS BIE  Intermediate examination. The scheduled will be announced by TS BIE. You have to apply for supplementary exam, pay the fee and appear for the examination.