The National Science Day is celebrated every year on Feb 28 to commemorate the discovery of Raman Effect by Sir C. V. Raman. The prime aim of this talk is to inculcate scientific temper among our students, researchers and faculties of all disciplines. Prof. C. Vijayan is a professor at Department of Physics, IIT Madras, who is a well – known popular science speaker. All are welcome to enjoy a thought provoking session.