Mahavir Jayanti is observed by Jains as birth anniversary of sage Mahavir. Mahavir, also known as Vardhamana, established core tenets of Jainism. Mahavir was the 24th and the last Jain sage.
Mahavir was born on thirteenth day of the rising moon of Chaitra month (which was Trayodashi Tithi during Shukla Paksha of Chaitra month). Mahavir was born during 599 B.C. and disappeared in 527 B.C. at the age of 72. Mahavir was born at Kundalagrama which is situated under Vaishali district in Bihar.