Hello Vihaa,

Is it possible that you are talking about the Indian Administrative Services (IAS) exams? If yes, a PCMB student, or student from any undergraduate discipline, can cope with the syllabus and crack the exam. The subject that you have to study depends on you. You get to choose optionals for the Mains exams. Core PCMB subjects like Math, Statistics, Civil and Mechanical Engineering are offered.