hi,

According to All india council of technical education, eligibility criteria to pursue an MCA course candidates must have pursued BCA/ BSc/ BCom/ BA degree with Mathematics as one of the subjects at 10+2 level or at graduation.

some of the tier 1 institute has entrance test for mca, you may follow the below link to know in details,

https://it.careers360.com/articles/top-7-mca-entrance-exams-in-india