The IISER Aptitude Test 2025 will be held on May 25, 2025 in a computer-based test format. Candidates must have taken at least three subjects among Biology, Chemistry, Mathematics and Physics during their Class 12 (or equivalent) examination. Foreign Nationals need to upload an equivalence certificate issued by the Association of Indian Universities unless they have passed the Class 12 or equivalent level examination in 2023 or 2024 or 2025 with science stream from any board recognised by the Council of Boards of School Education (COBSE) in India. The admit cards for the exam will be released on May 15, 2025. For admissions to the following programs, candidates must have Mathematics during their class 12 ( or equivalent): 5-year BS-MS in Computational and Data Sciences program at IISer Kolkata, 4-year BTech programme at I ISER Bhopal. 4- year BS in Economic Sciences programme atIISER bhopal and 4- years BS in economic and Statistical Sciences programme in Tirupati.