Chinnamanur town is at a height of 374 m above sea level. This town was initially called Harikesarinallur and is known for the Sivagamiamman Temple that is situated on the banks of Mullai River. The town is also mentioned in the Tamil grammatical work, Tholkappium.
According to mythology, this town has been in existence since the King of Madurai, Rajasimeshwaran, arrived here. It is believed that the temple was constructed at a site where the milkman of the king found a root.
The king was informed about the place and he built a temple and named it as Thiru Poolanandeshwarar Sivakami Amman Temple. A Shiva Lingam is enshrined in this temple.
Chinnamanur is also famous for churches like the Roman Catholic Church, Bethel Church India and Tamil Nadu Pentecostal Mission. The town also has three important mosques, namely the Big Mosque, Cinna Masjid and Samikulam Pallivasal.