Days and Years on General Knowledge related Questions and Answers

Question :   India Celebrates February 28 every year as 'National Science Day' because on this day 1. first Indian Space craft was launched 2. Nehru laid the foundation of Science labs all over India 3. in 1928 C.V. Raman discovered what was later called the 'Raman Effect' 4. Vikram Sarabhai was born Answer :   3 - in 1928 C.V. Raman discovered what was later called the 'Raman Effect'