Complex sentence: It is one of the 275 Paadal Petra Sthalams, where all of the four most revered Nayanars (Saivite Saints) have sung the glories of this temple.
Split into simpler sentences: It is one of the 275 Paadal Petra Sthalams. All of the four most revered Nayanars (Saivite Saints) have sung the glories of this temple.