Hey , the admission for MCA are done on the basis of entrance exams. Some colleges prefer there own exams while some are based on exams like NIMCET , DTE ,etc .

Here is the list of colleges in India & the exams they accept for the admission. Kindly go through it.

https://it.careers360.com/colleges/list-of-BCA-MCA-colleges-in-India

If you have any doubt , mention it in comment section.