Article Detail Army day Answer: 15 January Similar Questions : 1. World Population Day Answer: 11th July 2. National Technology Day Answer: 11 May 3. World Water Day Answer: 22 March 4. Children's Day Answer: 14 November 5. National youth day Answer: 12th January. It is celebrated on the birthday of swami Vivekanand ji 6. Indian republic day Answer: 26 January 7. National Energy Conservation Day Answer: 14 December Read more from - Important Days of Year