Karumariamman (Tamil: கருமாரியம்மன்), also known as Karumari, is the Hindu goddess of smallpox, health and cure. She is also an aspect of the Hindu goddess Parvati and another form of the goddess Mariamman and Renuka.
 
Brass diyas are believed to generate a spiritual sound that helps in creating positive surroundings. Even for cooking the prasadam or the bhog, you can witness the brass utensils being used to date. it is believed that brass items attract holy spiritual waves and thus, brass diyas are utilized in puja.