ddear student

The basic eligibility to become a Chartered accountant is to pass in 10+2 from a recognised board.

the charted accountacy course has following four stages:

CA-CPT( ENTRANCE EXAM FOR CA)

CA-IPCC(CA INTER)

CA-ARTICLESHIP( TRAINING PERIOD)

CA-FINAL

You are eligible to give CPT exam after +2 exam, and you will have to register for the CPT exam  before the required date(1st april for the june attempt) 

visit the given link below for more information

www.icai.org

hope this helps

All the best!!!