Days And Years
24th March is celebrated as

National Science Day (India)
World Wild Life Day
World Tuberculosis Day
Thinking Day

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Days And Years
India Celebrates February 28 every year as 'National Science Day' because on this day

Nehru laid the foundation of Science labs all over India
first Indian Space craft was launched
Vikram Sarabhai was born
in 1928 C.V. Raman discovered what was later called the 'Raman Effect'

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