31 October in Indian and World History
31 October in Indian and World History is celebrated, observed, and remembered for various reasons. 31 October is the birth anniversary of Sardar Vallabhbhai Patel, Narinder Singh Kapany, G. Madhavan Nair, and Sarbananda Sonowal. 31 October is also observed as the death anniversary of Sachin Dev Burman, Indira Priyadarshini Gandhi, and Amrita Pritam.