i m fail in 12th and i want admission in civil engineering diploma,on 10th basis,i got 54.84% in

TO have a frank advise, what you are going to achieve after getting into diploma. remeber u failed in 12th and not scored a respectable score in 10th too. therefore please try to improve ur basic knowledge of the subjects, please try doing 12th again. IF you are really inclined to do civil eng than

I have already given reply to your question.