Bhatta Kallata

Bhatta Kallata also referred as Kallata was a notable 9th-century Shaivite thinker who may have written the Spanda-vritti, and Spanda-karika.

He was a pupil of Vasugupta, another possible author of the Spanda-karika. According to Rajatarangini (The River of Kings) written in 12th-century CE by Kalhana, he lived during the reign of Avanti Varman (855-883 CE).