Article Detail Sarvodaya day Answer: 30 January Similar Questions : 1. Anti Terrorism Day Answer: 21st May 2. Mother's Day Answer: Second sunday of May 3. National Science Day Answer: 28 February 4. World Laughter Day Answer: 10th January 5. World Book and Copyright Day Answer: 23 April 6. World Food Day Answer: 16 October 7. World Post Office Day Answer: 9 October Read more from - Important Days of Year