To be eligible for the Diploma degree program at Carmel Polytechnic College, Alappuza, candidates must have completed their 10th standard or equivalent examination from a recognized board. Additionally, they must have obtained a minimum aggregate score of 50% in their qualifying examination. Candidates from both science and non-science backgrounds are eligible to apply for the program. It is also important for candidates to meet any specific subject requirements as outlined by the college for the particular diploma course they are interested in pursuing. Admission to the program is based on merit and availability of seats, with preference given to candidates with relevant work experience or extracurricular achievements.