You have many good MCA options in Bangalore.
Like no1 for me would be MAHE which is Manipal University for Higher Education which has extremely good infrastructure for giving a platform to excel in your line and pursue your dreams.
Other notable colleges on the cheaper side
Are MS Ramaih
RV college of engineering and more private institutes down there in Karnataka.
There are many good universities in Karnataka and Bangalore and any of them would be good for your career.
Hope this helps.
Best of luck!!

Hello,
After BCA, You can do MCA course of three year's duration.You can appear for many entrance exams for MCA like NIMCET for NITs,JNU,BHU,BIT MESRA, and many state government exams.
Good luck.