To be eligible for the Diploma degree program at Government Model Residential Polytechnic Mahbubnagar, candidates must fulfill certain criteria. Firstly, applicants must have completed their 10th standard or equivalent examination from a recognized board. Additionally, they should have studied Mathematics and Science as compulsory subjects during their 10th grade. Furthermore, candidates must secure a minimum aggregate percentage of 35% in their 10th standard. It is important to note that the eligibility criteria may vary for different specializations within the Diploma program, and candidates are advised to refer to the official website or prospectus for specific requirements related to their desired field of study.