I suggest you to do MBA IT/Systems as you are computer science back ground.
If you do MCA it will gives you opportunities in the field of software.
If you do MBA in IT/Systems you will get the opportunities in both software side and also in Management field.
As you are good at programming better to be in the field of Software that's why i suggested you to go with the software related MBA courses.
If you want to go with MBA then you have to attend any common entrance examinations like CAT,MAT, XAT, NMAT, SNAP, IBSAT, JMET, GMAT, OPEN MAT, TANCET, ICET etc., Try to get good rank in any of these examinations so that you will get a good college. If you do MBA in good college then you will get more opportunities than a below average college. This is for kind information. All the best.