Yes, you can provided you have the required qualifications. Candidates who wish to apply for PGDCA 1 year diploma course must be a graduate from a recognized university. However the eligibility criteria is not uniform for all the colleges/universities. Some universities prefer candidates who have studied Mathematics in their graduate degree.

To know more about the course, please go through the link provided below

https://www.careers360.com/courses/pgdca-post-graduate-diploma-in-computer-application/amp