1) Thai Pongal :- Pongal is celebrated on the first day of Thai Masam.
2) Puthandu – Puthandu or Varusha Pirappu is celebrated on first day of Tamil month Chithirai.
3) Deepavali – Deepavali is celebrated when Chaturdashi Tithi prevails during Brahma Muhuratam.
4) Kedar Gauri Vrat or Kedara Vratham
5) Karthigai Deepam – The day when Karthigai Star coincides with Pournami in Tamil month Karthikai.
6) Soorasamharam – The final and the most important event of the six days Kanda Sashti festivals.
7) Panguni Uthiram – Panguni Uthiram is celebrated in Panguni month when Nakshatra Uthiram or Uttara Phalguni overcome.
8) Vaikuntha Ekadashi – On this day devotees observe fast on Vaikuntha Ekadashi attain salvation.
9) Vaikasi Visakam – Vaikasi Visakam is the birthday of Lord Murugan and is celebrated during Visakam Nakshatra in Tamil month Vaikasi.
10) Thai Pusam – Thaipusam or Thai Poosam falls in Tamil Solar month Thai.
11) Karadaiyam Nombu – Karadaiyan Nombu or Karadayan Nonbu is celebrated at the time on Meena Sankranti or Sankramana.
12) Masi Magam – Masi Magam or Maasi Makam, is celebrated by Tamil speaking people all over the world.
13) Hanumath Jayanthi – Hanumath Jayanthi is observed in the month of Margashirsha Amavasya which falls in January or December.
14) Arudra Darshan – Arudra Darshan is celebrated during Margashirsha Amavasya and falls in January or December.
15) Avani Avittam – Avani Avittam is a festival of Tamil Brahmins.
16) Chitra Pournami – Chitra Pournami, is dedicated to God Chitragupta.