The Department of Mathematical Statistics was established in August 1973, though the teaching of M.A. in Mathematical Statistics had been introduced as early as in July 1957 at the initiative of Professor Ram Behari as part of a development programme adopted by the Department of Mathematics. Professor H.C. Gupta was the first head of the Department and he can be credited with the setting up of a good school in Stochastic Processes.. In 1971, the scope of post-graduate course in Mathematical Statistics was extended leading to M.Sc. degree in Statistics.

In 1987, the Department of Mathematical Statistics was re-named as the Department of Statistics. The Department is running the post-graduate (M.A./M.Sc.), M.Phil. and Ph.D. programmes in Statistics.

The Department imparts rigorous training and exposure to the students in computer education by way of introducing the latest state-of-the-art in the programming language and computer software to enable to the students to perform statistical data analysis. With a view to preparing research background of the students, the M.Phil. Course in Mathematical Statistics was introduced in 1977 and the same has been continually updated covering most of the areas of Theoretical and Applied Statistics at the specialization level.

The Department has laboratories equipped with the basic and modern computing facilities. There is a good collection of books in department with latest titles in various areas of statistics. Two computer laboratories with latest computing systems and related equipment have been setup in the Department for the use of students, research scholars and teachers. Regarding the job opportunities, the Department has a placement cell operating since academic year 2005-06. The department also has Research Activity Cell, UDAAN-The Socio-Cultural cell and Heritage Club operating since the academic year 2016-17. We can take pride in the fact that students get suitable placement in Research Institutes or Industries or Government Departments. Significant number of students are selected in the prestigious Indian Statistical Service (ISS) each year.