To pursue a Diploma degree at Hayagriva Polytechnic College in Puducherry, candidates must meet certain eligibility criteria. Firstly, applicants should have completed their secondary education (10th grade) from a recognized board or its equivalent. They should have obtained a minimum aggregate score of 50% in their qualifying examination. Additionally, candidates must have studied Mathematics and Science as compulsory subjects in their secondary education. It is important to note that the eligibility criteria may vary for different diploma programs offered by the college. Therefore, interested individuals are advised to refer to the official college website or prospectus for specific requirements related to their desired course.