In Hinduism Saraswati is the goddess of knowledge, music, arts and science. She is the consort of Brahma, also revered as His Shakti. Her figure is also popular in the Jain religion of west and central India. Saraswati, known as Sraosha in Zoroastrianism is the guardian of earth. Sraosha (“obedience”) is also the wife and messenger of Ahura Mazda, and her role as the "Teacher of Daena", Daena being the hypostasis of both "Conscience" and "Religion".
She is also called Druga for fighting off Drug (Drug, the name for female demon in ancient Veda, from the Sanskrit root druh "to be hostile"). The name Druga is made of Sanskrit dru or dur "with difficulty" and gā or jā ("come", "go"). Saraswati is known as a guardian deity in Buddhism who upholds the teachings of Gautama Buddha by offering protection and assistance to practitioners.
In some Puranas (like Skanda Purana) she is daughter
of Shiva (Shivaanujaa) and in some Tantras with Ganesha. However across India
she is worshipped as the wife of Lord Brahma. In the Devi Mahatyam it mentions
her as Brahmapatni. According to some sects Saraswati was born from the left
body part of Vishnu when Vishnu was in his eternal sleep.