Which is better for government job? DIPLOMA CIVIL engineering or BCA(bachelor of computer application)? I am physical handicap student.

I would suggest you to keep your options open. If you go for BCA, you have pretty good chances of getting a job as the market size is huge. But with diploma in civil, you may go for government job, but not many openings. So competition would be more and intense.

both are different diploma is done after 10th and BCA is after 12th , after diploma or 12th Btech is better , but if are 12tth then BCA is also good option