National Mathematics Day (India)
The 2012 Indian stamp featured Srinivasa Ramanujan. The Indian government declared 22 December to be National Mathematics Day. It was introduced by Prime Minister Manmohan Singh on 26 December 2011 at Madras University, to mark the 125th birth anniversary of the Indian mathematician Srinivasa Ramanujan. On this occasion Prime minister Manmohan Singh also announced that 2012 would be celebrated as the National Mathematics Year. Since then, India's National Mathematics  Day is celebrated on  22 December every year with numerous educational events held at schools and universities throughout the country. In 2017, the day's significance was enhanced by the opening of the Ramanujan Math Park in Kuppam, in Chittoor, Andhra Pradesh. National Mathematics Day is celebrated in all schools and universities throughout the country. References

Science and technology in India
Indian mathematics
Observances in India