Hey,

According to the eligibility criteria for appearing for CAT one needs to either have a 3 years Bachelors degree with atleast 50% or need have a CA/CS professional degree with atleast 50% in it.

You need to complete your CA in order to appear for it. Instead I'll recommend you have a Bachelors degree as a backup. The chanves for one to become a CA is very less and needs much hard work. You can always keep a Bachelors degree as an option to fall back on which can be done from any regular or correspondence (companies treat them equalivant).

Hope this helps.