To be eligible for the B.Ed degree program at St. Mary's B.Ed. College in Thane, candidates must have a minimum of 50% aggregate marks in their Bachelor's degree in any discipline from a recognized university. Additionally, candidates must have completed their graduation with at least 50% marks in the subject they wish to teach. It is also mandatory for candidates to have qualified in the entrance examination conducted by the college or as per the guidelines of the state government. Candidates with relevant work experience in the field of education may be given preference during the selection process.