S.R. Yadav, Professor of Mathematics in B. K. Birla Institute of Engineering & Technology, Pilani (Rajasthan) (Formerly, Professor of Mathematics, BITS Pilani), has experience of more than forty-five years in teaching and research. Prof. Yadav spent his teaching time at BITS Pilani for 39 years and has been nucleus member of various divisions in BITS, Pilani. He did his Ph.D. from BITS, Pilani in 1973. He taught Optimization Techniques and Operations Research for about 30 years. He has published more than fifteen papers in national and international journals and has attended and presented research papers in various conferences. He served as Director at Shighania Institute of Law, Management, Science and Technology (At present Shighania University) Pacheri Badi, Jhunjhunu (Rajasthan).