The Department of Mathematics was established in 1978 as the Department of Applied Mathematics in the erstwhile Post Graduate Centre of University of Madras.  Later in 1982 when Bharathiar University was formed by the Government of Tamil Nadu, the Department came under Bharathiar University as the Department of Mathematics.  .

The Department of Linguistics was established in the year 1985. Since its inception, the department is successfully doing higher researches and offering courses leading to M.A., M.Phil., and Ph.D degrees. In addition to these, the Department has taken up academic extension activities in the socially relevant areas such as tribal literacy, adult literacy, teacher training, etc.

The Department of Library and Information Science at Bharathiar University is one of the new departments in the field of Library and Information Science education in India. The Department was established in 2008. The Department is blooming under the able leadership of Dr R. Sarangapani, Head i/c. The Department conducts a 2-years integrated Master of Library & Information Science (M.Lib.I.Sc.) Programme. Apart from M.Lib.I.Sc.

To meet the growing demands in the field of Science and Technology in general and Computer Science in particular, the Department of Information Technology was started in the year 2008 under School of Computer Science and Engineering with the objective of imparting knowledge in cutting-edge technologies in Information Technology and Computer Science.

The Department of Human Genetics and Molecular Biology, is the first Department in this field in Southern India, fertilized in the womb of the Department of Zoology as a unit of Human Molecular Genetics. It grew into an individual Department during June 2014. This Department is established with a sole intention of exploring and treating various genetic diseases in humans.

The Department of History and Tourism has been started in the academic year (2016-17). It is a pioneering venture of the university devoted to the cause of historical study with a view to contribute to research in History. As the saying goes “History makes men wise”, the department offers papers to improve the understanding of the students about the world events and relate them to the present scenario as such.

The department works with the objectives of offering career guidance to the young buddies in the education sector through the well qualified faculty members, research scholars of the career guidance. Additionally, the department is working towards for getting ready the students for industrial requirement through vocational education.

The Department of Environmental Sciences was started in 1986 as one of the new departments when Bharathiar University was formed in 1982. The Department of Environmental Sciences was started with nature-based Solution (NBS) objectives and addressing the solution for Regional, National and Global Environmental and Ecological related issues. From the beginning onwards the Department has been promoting excellent teaching, commendable research, and society-based extension activities 

Since the inception of the Department of English and Foreign Languages in the year of 2007 by Dr.P.Palanivel, Former Head and Professor, the Activities have been foreseen to the intersectionality of English Language and Literature. In the combined pursuit of Language and Literature, the Department has been offering PG, MPhil and Ph.D programs. The Teaching, Learning and Research is centered on aesthetic, linguistic and cognitive potential of the Discipline.

The Department was established in the year 2008. The mission of the department is to impart its students a thorough knowledge about the exciting field of electronic science and technology. The department also aims at creating an efficient interface between academia and industry. Initially the department started with three faculties. Presently, there are one Associate Professor and four Assistant Professor including one UGC-FRP.