National Mathematics Day will be observed today to commemorate the birth anniversary of Srinivasa Ramanujan, one of India’s most influential and globally recognised mathematicians. The day will be marked across educational institutions, research bodies and academic forums to highlight the importance of mathematics in scientific progress and everyday life. The observance was formally instituted by the Government of India in December 2011, and December 22 was designated as National Mathematics Day in recognition of Ramanujan’s extraordinary contributions to the discipline. The following year, 2012, was observed nationwide as the National Mathematics Year, giving further institutional push to mathematical learning and research. December 22 marks the birth of Srinivasa Ramanujan, whose work continues to influence modern mathematics more than a century later.