The Warli or Varli are an indigenous tribe of western India there related ethnic groups are Konkani people, Marathi people. living in mountainous as well as coastal areas along the Maharashtra and Gujarat border and surrounding areas. The Warli have their own animistic beliefs, life, customs and traditions, and as a result of acculturation they have adopted many Hindu beliefs. The Warli speak the unwritten Varli language which belongs to the southern zone of the Indo-Aryan languages. Waralis have sub castes such as Murde varli, Davar varali. Warlis are found in Jawhar, Vikramgad, Mokhada, Dahanu and Talasari talukas of the northern Palghar district, parts of Nashik and Dhule as well as Navapur taluka of Nandurbar of Maharashtra, Valsad, Dangs, Navsari and Surat districts of Gujarat, and the union territory of Dadra and Nagar Haveli and Daman and Diu. The Warli speak the Varli language, classified as Marathi, with some degree of influence from Bhili. Varli is classified under Marathi by Grierson (Grierson's Linguistic Survey of India) as well as A.M. Ghatage (Warli of Thana, vol. VII of A Survey of Marathi dialects) Warli painting In the book The Painted World of the Warlis Yashodhara Dalmia claimed that the Warli carry on a tradition stretching back to 2500 or 3000 BCE. Their mural paintings are similar to those done between 500 and 10,000 BCE in the Rock Shelters of Bhimbetka, in Madhya Pradesh. Their extremely rudimentary wall paintings use a very basic graphic vocabulary: a circle, a triangle and a square. Their paintings were monosyllabic. The circle and triangle come from their observation of nature, the circle representing the sun and the moon, the triangle derived from mountains and pointed trees. Only the square seems to obey a different logic and seems to be a human invention, indicating a sacred enclosure or a piece of land. So the central motive in each ritual painting is the square, known as the "chauk" or "chaukat", mostly of two types: Devchauk and Lagnachauk.