Hello,

Yes you can go for BCA course. BCA is bachalor of computer application, it's a three years graduation course. You can change your Bcom and take BCA at chattisgarh infact mumbai also. You have to pass 12th with minimum 50% marks because for any BCA admission check your 12th marks. It's mainly merit base admission but some colleges have occure their own entrance examination so you have to check it out.

All the best.