Thiruvadhirai or Aarudra darisanam is celebrated on Thiruvadhirai star day of the Tamil month margazhi. In Chidambaram, it is a 10-day festival.
It is the day of Lord Nataraja”s birthday. Maha abhishekam and Vedic rituals are done in Chidambaram Natarajar temple on this day. Maha abhishekam is done in the early hours around 3 AM when the moon still shines. This abhishekam will take even 3 hours. After this Lord Nataraja and Goddess Sivakamasundari is decorated with Thiruvabharanam. Around noon during Pancha Murthi Thiruveethi Ula Lord and Goddess will bless the devotees.