Amavasya of Shravana Month is known as Polala Amavasya. The name Polala is derived from the local Goddess Poleramma. Poleramma is a local deity, and is considered to be one of the incarnations of Goddess Durga. The name Poleramma is deduced from the word Polimeru. Polimeru is a Telugu word which means out skirt of the village. As Poleramma protects the outskirts or polimeru she is known as Poleramma.
Poleramma is a house deity for few families. Those families normally perform the Poleramma Puja on the Shravana Amavasya. And hence it is called Polala Amavasya. Polala Amavasya is mostly a local festival in Andhra Pradesh.