Chennai Mathematical Institute (CMI) is a UGC-recognised research university in Siruseri, Tamil Nadu, offering B.S. (Honours), M.Sc., and Ph.D. programmes in Mathematics, Computer Science, and Physics. Admission to every programme is decided solely through the CMI Entrance Exam, held annually in May at centres across India, with no other national exam accepted.

For Junior Research Fellowship and Lecturer-ship

CUET PG is a national-level entrance exam conducted by the National Testing Agency (NTA) for admission to postgraduate programs across India. Introduced as CUCET in 2010 and restructured under NEP 2020, it serves as a single-window test for PG admissions to 180+ universities, including all central universities.

The Graduate Aptitude Test in Engineering (GATE) is a national-level computer-based test in India that evaluates a candidate's comprehensive understanding of undergraduate subjects in engineering, technology, science, architecture, commerce, and arts

The Indian Statistical Institute (ISI) Admission Test is the national-level entrance examination conducted by ISI Kolkata for admission to its undergraduate, postgraduate, and research programmes in statistics, mathematics, computer science, and quantitative economics. Held every May in offline (pen-and-paper) mode, it is the primary gateway to ISI's campuses in Kolkata, Delhi, Bengaluru, Chennai, and Tezpur.

MBA (Master of Business Administration) is a two-year, full-time postgraduate management degree recognised by AICTE and offered by the IIMs, XLRI, FMS, and hundreds of business schools across India. Admission runs through national entrance exams — chiefly the Common Admission Test (CAT), conducted annually by the IIMs — alongside XAT, CMAT, SNAP, and NMAT.