Vaidyanath Jayanti is observed on Maha Shivratri festival in North India. In 2016, Vaidyanath Jayanti date is March 7.
Deoghar Vaidyanath Temple, also known as Baba Dham or Baidyanath Dham, is one of the Dwadash Jyotirlingas, twelve most sacred abodes of Lord Shiva. It is located at Deoghar in Santhal Parganas of Jharkhand.
As per the legends, Vaidyanath first appeared on this day. Maha Shivaratri falls on Krishna Paksha Chaturdashi in Phalgun Month in Hindi calendars.