I am going to do ca

Yes, you can finish your CPT course in duration of 3 years.

The minimum course duration as per the regulations of the institution is

CA-CPT- 2 months (6 months)

The course duration is the minimum time that a student has to spend on taking up the course at this level. It is the period starting from, the time the student gets registered for the course, to the time the student completes the course.

A student can appear at the first examination falling immediately after the completion of the minimum duration. The actual time that a student has to spend on the course (from registration to examination) is dependent on the actual date of registration.

Since examinations are conducted for the course only twice a year, the course duration can be assumed to be 6 months.

All the Best!!