How can I do CA and MBA together after +2? When to register for CPT? What will be the duration of CPT classes? Which MBA would be sensible with CA among Accounting, Finance and Marketing?

How can i take ca and mba together after +2
I am about to turn 18 & currently about to finish 2 (Commerce Computer Application).I had a decent 73% in 1. Now i want to go for ca bcom.but i dont know when to register and when the classes start for cpt.i know the rest about the subjects,ipcc and final.But i want to know when the classes start and end for cpt.
The next thing i want to know is that since i want to do Bcom i want to do an MBA with ca.But i want to do it in distance.tell me what i have to do to get mba in distance.i also want to know which mba would be sensible with ca like accounting,finance,marketing etc.
I am just planning ahead for my future.