Hello aspirant,
The best colleges for MCA is:

• Ms ramaiah institute of technology
• Jain University
• Kristu jayanthi college
• New horizon college of engineering
• Cambridge institute of technology
• Acharya institute of technology
• T John college
• T John institute of technology
• Brindivan college
• The Oxford college of engineering

These are some of the top colleges in Bangalore. If you are looking for Merit seat go through pgcet  Karnataka, it is not very hard entrance exam.
If you have any questions please let me know
All the best!!
Thank you!!!!

Dear aspirant,
MCA is 3 years course and eligibility criteria required is 50% in graduation with maths at 10+2.
Direct Admission:
Direct admissions are done on the basis of merit in qualifying exam. Some institutes also provide admission on management quota, which is also one way of direct admission. Management quota seats in every college are reserved. Fee is generally higher for these seats than general seats.
Entrance Test:
After taking entrance test conducted by various universities, qualified students are called for counselling. Counselling is conducted for seat allotment in various colleges under that university. Admission is done after allotment of seat in counselling.
Mostly every college keeps entrance exam but some private institutions may offer you management quota/ direct admissions.
Thank you!!!