Rashtriya Vigyan Evam Prodoyogiki Sanchar Parishad (RVPSP) (National Council for Science & Technology Communication) of the Ministry of Science and Technology celebrates National Science day (NSD) to popularise the benefits of scientific knowledge and practical appropriation.
Various activities are organised on the day, like debates, quiz competitions, exhibitions, lectures, in which college students, school students and teachers too participate.
Every year a different theme is selected and all the forth programmes and activities are based around that theme.
The day is celebrated to honour the Nobel laureate- Sir C.V. Raman for his invention of the ‘Raman effect’ on 28th February 1928.
Whole nation takes the honour of thanking all the scientists for their remarkable contributions and dedication on this occasion.  The day attracts many young minds and motivates them to take up science as their career. It is celebrated by showcasing country’s competence in the field of science.

National Science Day 2015Science has played very important role in transforming society. The events on this day remind the importance of science; thus inspire people of all ages to work in the field of science, engineering and technology.
Sir C. V. Raman was the first Indian scientist to be honoured with the prestigious Nobel Award in Physics in the year1930. Hence, the National Science Day holds great significance for Indian Science and scientific community.
National Science Day brings an opportunity to focus on issues related to science and technology. There are activities organised that cater to the issues needing attention and people interact with the science fraternity for mutual benefit.
National Science Day is observed to spread the message of importance of science and its application among the people. Science has contributed a lot towards welfare of humanity and this day is celebrated to accelerate the pace of development.

Raman Effect

Raman effect or Raman scattering is popularly known as an inelastic scattering of a photon.
When light is scattered from an atom or molecule, most photons are elastically scattered with almost the same energy (frequency) and wavelength as the incident photons. But a small fraction of the photons is scattered by excitation. The frequency of scattered photons is lower than the frequency of the incident photons.

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