I WOULD LIKE TO DO CA AT THE AGE 42 YEARS

1. Register for CPT

2 .Appear and clear CPT exam

3 .Register for IPCC

4 .Undergo ITT training and orientation course conducted by the institute for 1 month

5. Wait for 9 months

6. Appear and clear IPCC exam

7. Register under the current CA for articleship.  You will be treated as an article assistant not as an employee.        Your boss would merely on paper treat you as an article but virtually you will remain as an employee

8. Complete the articleship for 3 years

9. Appear and Clear CA final exam

10. Undergo GMCS course conducted by the institute

11. If you sail through all these then you become a member…… that is "CHARTERED ACCOUTANT" 

yes this is the right way to become a Chartered Accountant as suggested by Mr Kaushik