Hello,

Eligibility criteria to take admissiom in MCA colleges:

• Aspirants need to be an Indian National (not necessary)One with a bachelor's degree in Computer Applications, Computer Science or Information Technology is eligible to apply
• 50% to 60% (a CGPA above 6/10 is considered good) in Bachelors' degree
• Minimum 55% and above in Class 12th

You may please note that the process will be different from one College to another.

And you have only mentioned Bangalore right.

MCA colleges in Bangalore are:

• PES University (PESU)
• Christ University
• Kristu Jayanti College
• NHCE Bangalore - New Horizon College of Engineering
• Teachers' Academy Group of Institutions
• Ramaiah Institute of Technology
• Brindavan College of Engineering
• IFIM Institute of Social Sciences
• Bangalore University
• Department of PG Studies, VisvesvarayaTechnological University, Bangalore
• Ram Narayan Institute of Technology

these colleges can either offer merit base admission or entrance test.

https://www.careers360.com/courses/mca-master-of-computer-applications

Hope this helps!!