Doctor of Philosophy (Ph.D.) Program is offered in following disciplines

Arts	:	English, History, Political Science, Economics, Sociology, Commerce, Population Studies, Business Administration, Library & Information Science, and Philosophy.
Science	:	Mathematics, Statistics, Physics, Chemistry, Botany, Herbal Science, Zoology, Microbiology, Environmental Biotechnology, Marine Biotechnology, Marine Microbiology, Marine Food Technology, Marine Biology & Oceanography, Coastal Aquaculture, Geology, Applied Geology, Geoinformatics, Biochemistry and Biotechnology.
Indian Languages	:	Tamil, Hindi, Linguistics
Engineering & Technology	:	Civil, Structural, Mechanical, Manufacturing, Electrical,Instrumentation, Chemical, Computer Science & Engineering, and Pharmacy.
Education	:	Education, Psychology & Physical Education
Fine Arts	:	Music
Agriculture	:	Agronomy, Entomology, Plant Pathology, Microbiology, Soil Science & Agricultural Chemistry, Agricultural Botany, Horticulture, Agricultural Economics, and Agricultural Extension.
Medicine	:	Anatomy, Physiology, Biochemistry, Pharmacology, Pathology, Microbiology, Community Medicine, Medicine, Paediatrics, Obstetrics & Gynaecology, Surgery, Ophthalmology, Radiology, Dermatology, and Nursing.
Dentistry	:	Orthodontics, Periodontics, Pharmacology, and Oral Pathology.