Can I apply for BIT MCA entrance test if I am currently in my final year of BCA/B.Sc. in 2026?

No. The official guidelines for BIT Mesra do not specify an upper age limit for the MCA program, provided you meet the educational and percentage requirements. 

Only if already completed. You are eligible if your programme is recognised by DEC-IGNOU and you have already passed the final exam at the time of application. Students currently "appearing" in their final year of a distance learning programme are not eligible to apply.

For B.Sc. Honours students, the minimum required marks are-

• 55% for General and OBC
• 50% for SC/ST/PwD

Average is calculated for your Honours subjects only.

No you are not eligible for the  BIT MCA program. Only eligible degrees are-
Bachelor of Computer Applications 
OR
B.Sc. in Computer Science 
OR
B.Sc. in Information Technology 
OR
B.Sc. in Computer Applications

Yes. With a B.Sc. in Mathematics, you are eligible for the BIT MCA program, as long as you meet the minimum percentage requirement and had Mathematics (or CS/IP) in Class 12.