To be eligible for the B.Ed degree program at St. Thomas College of Teacher Education, Kottayam, candidates must have a minimum of 50% in their Bachelor's degree from a recognized university. Additionally, candidates must have completed their undergraduate degree in a relevant field such as Education, Humanities, or Social Sciences. It is also necessary for candidates to pass the entrance exam conducted by the college and meet any other requirements set by the institution. Prior teaching experience or a background in education may also be considered during the selection process.