Hello Aspirant.

It totally depends how u could manage ur studies and articleship.

Option 1 : CA with BCOM

Generally those who does CA and BCOM together clear their CPT after 12th so mainly they have to manage their Ipcc studies and college.

Advantages:

1. As subjects are similar in BCOM and Ipcc so those college lecture could help u in ur Ipcc and u may need to join coaching for every subject.
2. The biggest advantage is of ur articleship coz only student through campus placement got articleship in big 4 without reference.

Disadvantage:

1. It becomes very difficult for some students to manage their college and sometimes it takes several attempt to clear Ipcc.
2. You can't do ur articleship with regular college so even if u pass Ipcc u will have to wait till completion of ur graduation.

Option 2 : CA after BCOM

Advantages:

1. Since u have already studied the concept in your BCOM so for Ipcc you just need practice and if u have good conceptual knowledge you can manage yous studies with office.
2. You can better enjoy your college life which never comes back.
3. In your BCOM u would got better understanding that after BCOM whether you should do CA or any other course believe me it is the biggest advantage coz you decide better than those who choose after 12th coz after 3 years of college you would have better knowledge of courses and u would know what u love to do

Disadvantages:

1. Generally big 4 and other good firms don't appoint students through direct entry and main reason is Ipcc exams
2. You would enjoy ur college life but after joining CA your life could become hell for you coz you are going office and you also have to study for Ipcc and after Ipcc then it's final so life may become hell after college

I have mention only some basic points, hope it would be helpful for you.