This is a multidisciplinary department taking in postgraduate students from various disciplines in science, engineering and medicine, and therefore a student taking admission into a Ph.D. or M.Phil program has to obtain some working background on necessary related subjects not covered by his/her previous background. These courses are designed not to make a student expert in all these subjects, but to give him/her an overview together with some fundamental concepts so that during the course of research s/he can feel the relevance of a particular topic of a particular subject and refer to an expert.