National Mathematics Day is observed in India every December 22 to commemorate the birth anniversary of the renowned mathematician Srinivasa Ramanujan, who was born on this date in 1887 in Erode. The day celebrates Ramanujan's significant contributions to various fields of mathematics, including continued fractions, infinite series, number theory, and mathematical analysis. In 2012, the Indian Prime Minister declared December 22 as National Mathematics Day, and the year 2012 was designated as National Mathematics Year. The observance is marked by numerous educational events held at schools and universities across the country, highlighting Ramanujan's legacy and promoting the importance of mathematics in education.