Why is National Science Day celebrated?

It marks C. V. Raman's announcement of the Raman Effect on 28 February 1928 — a discovery that won him the Nobel Prize.

Why does National Science Day fall on 28 February specifically?

Because C. V. Raman announced his discovery of the Raman Effect on this exact date, 28 February 1928.

Is there a holiday on National Science Day?

No — this is not a public holiday. Schools and colleges stay open and hold special science programmes instead.

When was National Science Day started?

The Government of India declared the day in 1986; the first actual observance took place in 1987.

National Science Day

National Science Day is observed across India every year on 28 February — marking the day Indian physicist C. V. Raman announced his discovery of the Raman Effect, on 28 February 1928. The discovery won Raman the 1930 Nobel Prize in Physics — he was the first Asian scientist to win a Nobel Prize in the sciences. In 2026, the day falls on a Saturday. This is not a public holiday — schools, colleges, and research institutes stay open and hold special programmes instead.

This year's dates (2026)

Saturday; not a public holidaySaturday, 28 February 2026

The Raman Effect is the phenomenon where light changes wavelength as it scatters while passing through a medium (a liquid, gas, or crystal). The "Raman spectroscopy" technique built on this discovery is used today in fields as varied as drug development, materials analysis, forensic investigation (detecting explosives and counterfeit drugs), and identifying pigments in old paintings.

History & significance

In 1921, during a voyage across Europe, C. V. Raman grew curious about the blue colour of the Mediterranean Sea and of icebergs; that curiosity led to the research that culminated in his announcement of the Raman Effect on 28 February 1928. The day is observed to encourage scientific research and innovation in India, and to build a scientific temperament among the general public.

On the recommendation of the National Council for Science and Technology Communication (NCSTC), the Government of India declared 28 February as National Science Day in 1986; the first actual observance followed the next year, in 1987. That same year, NCSTC also introduced national awards for science popularisation. The year of the declaration (1986) and the year of the first observance (1987) are two different years — worth keeping distinct.

Public holiday status

National Science Day is not a public holiday. Schools, colleges, research institutes, and offices function normally on this day — many institutions instead organise special science programmes.

How it is observed in India

Students across schools and colleges nationwide present science projects; national and state research institutes showcase their work. Various activities take place — public lectures, science films, exhibitions, sky-watching sessions, demonstrations, competitions, and debates — organised through science centres across the country under the National Council of Science Museums (NCSM).

The 2026 theme was "Women in Science: Catalysing Viksit Bharat" — highlighting women's contribution to science and their role in India's development goals.

In Maharashtra, two prominent Pune-based research institutions are on record as having officially marked National Science Day 2026 — IISER Pune (Indian Institute of Science Education and Research) and the Agharkar Research Institute, Pune. This is a genuine example of Maharashtra's active participation in India's scientific research ecosystem — detailed information on statewide school-level programmes was not independently found.

Good to know

National Science Day (28 February) is not a public holiday.
Don't confuse the year of declaration (1986) with the year of the first actual observance (1987) — they are two different years.
The Raman Effect (discovered 1928) and Raman's Nobel Prize (awarded 1930) are two distinct, related events — two years apart.

FAQ

Why is National Science Day celebrated?: It marks C. V. Raman's announcement of the Raman Effect on 28 February 1928 — a discovery that won him the Nobel Prize.
Why does National Science Day fall on 28 February specifically?: Because C. V. Raman announced his discovery of the Raman Effect on this exact date, 28 February 1928.
What is the Raman Effect?: The Raman Effect is the phenomenon where light changes wavelength as it scatters while passing through a medium — the discovery that won Raman the 1930 Nobel Prize.
Is there a holiday on National Science Day?: No — this is not a public holiday. Schools and colleges stay open and hold special science programmes instead.
When was National Science Day started?: The Government of India declared the day in 1986; the first actual observance took place in 1987.