Tamizh Varuda Pirappu –14th April
Aadi Velli Kizhamai – 20th,27th July,3rd and 10th August
Andal Thiruaadipuram- 23rd July
Pathinettam Perukku-2nd August
Avani Avittam/ Upakarma-1st August
Janmashtami/Gokulashtami-9th August
Vinayaka Chaturthi/Ganesh Chaturthi-19th September
Varalakshmi Viratham-27th July
Kovil Kannapiran Srijayanthi-8th September (For Iyengars)
Puratasi Sanikizhamai – 22nd, 29th September and 6th and 13th October
Navarathri Pujai Arambam-16th October
Saraswathi Puja ( Mahanavami)-October 23rd
Vijaya Dasami (Aayuda Puja) -October 24th
Deepavali (Naraka Chaturdasi) -November 13th
Boghi Pandigai -13th January 2013
Pongal/Sankaranthi-14th January 2013
Mattu Pongal-15th January 2013
Karadaiyan Nonbu-13th March 2013
Tamizh Puthandu-14th April 2013
Read the Round up of all Entries Here
The \'yum\' blog 
Thank you so much for adding Kovil Srijayanthi info in September! 🙂 I am not sure if the avani avittam and karthikai dates are for Yajur and Iyengars respectively.. if not, could you pls. add those dates too? Humbled by this site! Thanks so much again!!!