Every year, 28 February is celebrated as National Science Day in India. It is commemorated in the memory of Sir C.V. Raman’s discovery of a specific effect of light, that was later named after him as the Raman Effect. It also recognizes the contribution of every scientist whose discovery made human life easier.

Every year a specific theme is decided for National Science Day. The theme for 2026 is “Science for Sustainable Development: Promoting Green Technologies.” The objective is to support the use of eco-friendly technologies, underline the significance of sustainability and bring awareness to the mainstream.
The discovery of a specific type of scattering of light by CV Raman, which was previously unknown, and later named as the Raman Effect, was a revolution in the field of science. Through this it became easy to identify the molecular structure of a molecule. This day is now observed to inspire the younger generation and keep them curious and interested in scientific research.
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Chandrashekhar Venkata Raman, widely known as C.V. Raman, was born in Southern India in 1888. He was the first Indian to receive the Nobel Prize in Physics in 1930 for the discovery of a particular effect of scattering of light. His research initiated future advancements in the field of molecular fingerprinting and light scattering.
The Raman Effect occurs when light passes through a clear material and results in a change of its wavelength. This discovery widened the scope of studying molecular structure, how molecules behave, and how it changes. The areas it benefited includes:
National Science Day isn’t just a celebration of the Raman Effect, but a reminder of how powerful science is in understanding the environment and providing life-changing solutions. It signifies the importance of curiosity and human intellect in solving nature’s mystery and using it to benefit mankind.
It is celebrated on 28 February every year.
The theme for 2026 is – “Science for Sustainable Development: Promoting Green Technologies.”
National Science Day is observed in India to commemorate the discovery of the Raman Effect by C.V. Raman.
C.V. Raman is a celebrated Indian physicist. He was the first Indian scientist to win the Nobel Prize in physics in the year 1930 for the discovery of a specific light phenomenon, the scattering of light, that was later named as the Raman Effect.
The National Council for Science and Technology Communication (NCSTC) suggested the celebration of National Science Day in India in 1986. The Government of India officially assigned 28 February every year as National Science Day.

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