SSorry  ! don't post unnecessary, useless common answer plz,  whereas question is specific in context of Diploma in Civil Engineering & its equivalent .

Each & every person who desires for BA,LLB course becomes up to date with eligibility criteria by perusing prospectus etc. Where already mentioned as --- 12th or its equivalent.        Which is common.Now the important question  SSPECIALLY  IS-- "  Diploma in Civil Engineering (3yrs course after 10th) under  __ "State Board Of Technical Education, Jharkhand " Approved  by  AICTE." IS  EQUIVALENT  TO 12 th    for admission purpose in BA,LLB      (mind it not for JOB Purpose).