Multiple choice The National Science Day coincides with the birthday of C.V. Raman S. Chandra Sekhar Homi J. Baba Hargobind Khorana Reveal answer Fill a bubble to check yourself A Correct answer Explanation National Science Day in India is celebrated on February 28 to commemorate C.V. Raman's discovery of the Raman Effect in 1928, for which he was awarded the Nobel Prize in Physics in 1930.