🌐EnglishEnglishहिन्दीEntityQ6974273· pop 10· linked from 11 articlesNational Mathematics DayIndian annual holiday on December 22Available in 9 languagesहिन्दीAssameseBanglaMalayalamMarathiOdiaTamilTeluguConnectionsDecember 22EntityManmohan SinghEntityCategoriesIndian mathematicsObservances in IndiaScience and technology in India