Wikipedia
Ammachatram is a small and peaceful developing village situated 6KM from Kumbakonam (Temple Town) to Mayiladuthurai route on [State Highway (SH - 64)] and 277 km away from Chennai. The village is called Mela Ammachatram (West) and Ammachatram (East) that's centered in between UmaMaheswarapuram, Thirunageswaram(Famous for Rahu and Oppiliappan temple), Kumbakonam and Mayiladuthurai which is nearby the panchayat of Thepperumalnallur (famous for its Bhagavatha mela) and comes under Kumbakonam and Thiruvidaimarudur Taluk in Thanjavur District. Ammachatram is a village in Kumbakonam taluk, Thanjavur district, Tamil Nadu. As per the 2001 census, Ammachatram had a population of 2947 with 1499 males and 1448 females.2010 census may tell the development scenario which is expected at the earliest.
An ancient village prescribed in "Bavishyotta puranam" as "Bairavapuram" after some period it was called "Sakkuvambalpuram" or "Ammani Ammal Chatiram", presently pronounced as Ammachatiram in Tamil.