Hello Aspirant,

Not everyone is allowded to seat in all the exams. All the exams require certains requirements which must be satisfied to be able to apply for that exam. As in case of Jee Mains you have to complete your 11th and 12th under mathematics likewise there are different requirements for different exams. You can check all pre requirements for certian exam on its official website. You should check it before applying to any exam. If you qualify the requirements than you can apply for that exam.

Good Luck !!!!