To pursue a Diploma degree at A.R.J Polytechnic College Thiruvarur, applicants must meet certain eligibility criteria. Candidates should have completed their 10th standard or equivalent from a recognized board with a minimum aggregate score of 50%. Additionally, they should have studied Mathematics and Science as compulsory subjects in their 10th grade. It is important for applicants to fulfill these academic requirements to be considered for admission to the Diploma program at A.R.J Polytechnic College Thiruvarur.