Two Bhrammotsavams
              (annual festivals) at Chidambaram are of great significance, as they
              involve colorful processions of festival deities in the car streets. The grandest of these
              occurs in the month of Margazhi (Dec 15 - Jan 15), concluding on the full
              moon day corresponding to the Arudra Darisanam festival (Arudra Darisanam is celebrated in Saivite temples all over
              Tamilnadu). 
              This ten day festival
              at Chidambaram involves a grand scheme of traditional observances commencing with the
              hoisting of the temple flag on the first day, followed by colorful procesions of the five
              deities (Pancha Murthys) on the first eight days on various mounts. The
              fifth day features Mount Kailasam, while the sixth day features the
              elephant mount. 
              It is only on the ninth
              day that Nataraja leaves his sanctum, and is taken in a procession through the car
              streets, in the grand temple car. This is a special occasion and crowds throng to see it.
              Local fishermen communities traditionally offer gifts to Nataraja during
              this procession.
              Nataraja then returns
              to the Raja Sabha of
              the temple, where in the pre-dawn hours of the next day, while the moon
              is full, special abhishekams are performed to Nataraja,
              in the presence of tens of thousands of devotees, and this ritual is followed by the royal
              audience of Nataraja in the Raja Sabha.
              In the afternoon, Nataraja returns to the shrine ceremoniously from the
              Raja Sabha, amidst an enactment of the Ananda Tandavam
              or the Dance of Bliss.
              The second of the
              Bhrammotsavams happens in the month of Aani (June - July)  and it
              concludes with Aani Tirumanjanam on the tenth day, in a manner similar to
              Arudra Darisanam in Margazhi. It is interesting that
              these annual Bhrammotsavams or festivals happen in the tamil  months immediately
              preceding the summer and winter solstices (ie. Gemini and Sagittarius).
              Several other festivals
              centered around Nataraja and Sivakami are celebrated here throughout the year - Maasi
              Makam being one of the more significant ones.
              Live dance performances
              have been introduced to the temple recently, in the form of annual dance festivals.