Yes — SSC CGL needs a bachelor’s degree in any discipline from a recognised university, and BCA qualifies.
BCA graduates can apply for most CGL posts like ASO, Inspector, Auditor and Accountant.
Some posts need specific subjects — for example, Junior Statistical Officer needs statistics at degree level.
Check the post-wise essential qualifications in the official notification before applying.
Your degree must be complete by the cut-off date mentioned in the advertisement.