To be eligible for the BSc degree program at Krishna Theja Degree College in Chittoor, candidates must have completed their 10+2 education with a minimum of 50% aggregate marks in the science stream. Additionally, applicants must have studied Physics, Chemistry, and Mathematics as compulsory subjects in their qualifying examination. Admission to the program is based on merit, and candidates may be required to appear for an entrance exam or interview as part of the selection process. It is also important for candidates to meet any other specific requirements set by the college or university.