To be eligible for a BSc degree at Arignar Anna College, Kanyakumari, candidates must have completed their higher secondary education (10+2) with a minimum aggregate of 50% in relevant subjects. Additionally, candidates must have a strong foundation in science subjects such as Physics, Chemistry, and Mathematics. Entrance exams may be required for admission, and candidates must meet the cutoff scores set by the college. Prior work experience or extracurricular achievements in the field of science may also be taken into consideration during the selection process. It is important for candidates to thoroughly review the specific eligibility criteria set by the college before applying for the BSc program.