pEdhai nenjE indRai perumai aRindhilaiyO
yEdhu perumai indRaik kenDriyEl OdhugindRen
vAiththa pugazh mangaiyarkOn mAnilaththil vandhuthitha
kArthigaiyil kArthigai nAL kAN
Oh foolish mind! Don’t you know the glory associated with this day? If you ask me what makes this day special, I will tell you. The illustrious Thirumangai Azhwar incarnated in this world in the Karthigai month under Karthigal nakshathiram.
Tamil translation here.