Dear student you can't attempt GATE exam after completing BCA as BCA is a 3 year degree course and as per GATE guidelines student must have four years degree. Even students of B.Tech in 3rd year  are not eligible for GATE exam. You can attempt GATE exam after your MCA.
You can check this link for detailed eligibility criteria.
All the best
Hope this helps

Bangalore University

Admissions Courses & Fees Placements Reviews

Shortlist

Brochure

Graduate Aptitude Test in Engineering

Eligibility | Application | Exam Pattern | Admit Card | Preparation Tips | Books | Question Paper | Accepting Colleges

Get Updates Brochure