Arudra Darshan is also known as Thiruvadhirai Vrata is celbrated in the Tamil month of Margazhi coinciding with December – January. This day falls on the full moon night of this month when the Thiruvadhirai (Arudra) star rules over. Notably, this happens to be the longest night of the year. Arudra is the star that symbolizes golden red flame, which is none else than Lord Shiva at his cosmic dance. The main highlight of this occasion is having the darshan of Shiva as Natraj, the god at his cosmic dance.