Wikipedia
Goddess Ankalamma, or Angalamma, is also known as Ankamma or Angamma, Ankali, Angali, Ankala Parameswari and Angala Parameswari. She is worshipped with these names in Andhra Pradesh, Karnataka and Tamil Nadu.
Ankalamma is counted as one of the Matrikas or "Seven Mothers". She is also considered to be a form of goddess Ankali or Kali.
Ankalamma is a non-Vedic deity and, like so many Tamil popular deities, she seems to have originated in a fierce guardian figure. Sacred areas of Ankalamma and traditional Hindu deities are worshipped symbolically to appease the inner destructive impulses in us. Fowl or lamb offerings are made in village annual ceremonies and these are later consumed as food. Ankalamma's shrines are usually located outside of the village in groves of trees. They are usually not proper temples, but very simple stone structures.