Yeah! for MCA there are no boundation for stream. You can do MCA with any graduate degree provided you should have atleast 50 % in your graduation with Mathematics as one of your subjects.

Top MCA entrance exams are:

• MAH MCA CET
• BIT MCA
• JNU MCA
• DU MCA
• WB JECA

To know more about the entrance exams visit the link below:

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

I hope my answer helps. All the very best for your future endeavors!