Chief guest’s address delivered at Pushpa Gujral Science City, Kapurthala   on National  Science Day, 28 February 2009   Science behind Indian festivals   Rajesh Kochhar CSIR Emeritus Scientist Indian Institute of Science Education and Research Mohali  MG SIPA Complex,  Sector 26, Chandigarh 160019 [email protected]     The year 2009 ( continue reading… )