CA CPT is the Entrance Exam you need to apply. You have to clear below levels in order to become a CA.
CPT (Common Proficiency Test)
IPCC/IPCE (Integrated Professional Competence Course)
Three years of Articleship under any C.A who is practicing the profession
CA Final Exam

You can check teh complete information about the exam with the given below link.

https://finance.careers360.com/articles/ca-cpt

Good Luck!