1. Valivalam Thevaram - Pidiyadan Uru Umaikola .......Kadi Ganapathi vara arulilan
This song tells about the avathar of Ganapati. Both Shiva and Uma took the form of elephants and gave birth to Ganapathi
2. In Thiruchengottankudi thevaram in song 2, Sambandar mentions the temple as Ganapatheeswaram confirming the sthalapurana of Ganapathi installing and worshipping the lingam at Thiruchengottankudi.
Dear All,there is a GANAPATHI in THILATHARPANAPURI[sethilapathi now called, near poonthottam] village with HUMAN FACE!! I would to have yours opnion, thanks.
1. Kalladam's Kadavu Valthu 2. Pillayarpatti cave and the inscriptions of the cave
Both are pre 4th Century
But in the earlier discussions there were discussions on Ganapathi not mentioned in Thevaram and reason stating that it is a different religion etc is not right. Ganapathi is in Thevaram it itself is a proof that he is beeing worshipped for long time. Not a overnight imposition