To be eligible for the Diploma degree program at the Institute of Educational Research And Studies Primary Teachers' Training Institute Kolkata, candidates must meet certain criteria. Firstly, applicants should have completed their higher secondary education or its equivalent from a recognized board or university. Additionally, they should have obtained a minimum aggregate score of 50% in their qualifying examination. Furthermore, candidates must possess a strong interest in the field of primary education and a genuine passion for teaching. Good communication skills, both written and verbal, are also essential. Lastly, aspiring students may need to appear for an entrance examination conducted by the institute and successfully clear the selection process to secure admission.