Dr. Rao K. Surya, M.Sc. (Stat). M.A. (Math. Eco), PGDCA, Ph.D. (Eco), is Associate Professor and HOD, Post Graduate Courses & Research Centre, D.N.R. College, Bhimavaram, (A.P.). Dr. Rao Has more than 28 years of teaching experience in Probability, Statistical Methods, Quantitative Techniques and Operations Research besides Economics. Dr. Rao has been serving as a Guest / Visiting faculty for M.Pharmacy/B.Pharmacy course at shri Vishnu College of Pharmacy, Bhimavaram since 2003. He has been serving various institutions in and around Bhimavaram as Guest/Visiting faculty to teach Statistical Techniques to Engineering Sciences, Computer Applications, Management Science and Education Statistics for the last three decades. There are more than 20 publications to his credit in National Journals / Edited Volumes and Authored lessons to several Universities in Self-Learning Mode Pattern, More than 6 M.Phil. Degrees were so far awarded under his guidance and some scholars are pursuing for Ph.D degree.