Thali (meaning "plate" or "tray") or Bhojanam (meaning "full meal") is a round platter used to serve food in South Asia, Southeast Asia and the Caribbean. Thali is also used to refer to an Indian-style meal made up of a selection of various dishes which are served on a platter. Thali is also used in south Asia for ceremonial purposes. According to archeologist Bindeshwari Prasad Sinha, dish-on-stand and simple dishes belonging to the Indus Valley Civilization may be regarded as the prototype of Indian dishes as thalis but these do not have accompanying bowls commonly seen with thalis. According to Sinha the distinctive thali accompanying bowls instead appears in the Painted Grey Ware culture. Archeologist B.B. Lal similarly suggests food was eaten from the Painted Grey Ware dishes and bowls. B.B Lal notes that "typical dinner set in the Painted Grey Ware consists of the thali (dish), katora (bowl) and lota (drinking vessel)," he suggests it highlights the tradition followed today. Earliest textual sources on thali comes from Ayurveda Samhitas, Sangam and medieval period Indian cookbooks. A chapter in ancient Sushruta Samhita text is dedicated to dining etiquette, method of serving food and proper placement of each dish before the diner, it is the earliest known textual evidence on thali presentation. "The cook should place the bowls containing preparations of pulse, boiled rice and lambatives on clean, spacious trays, and spread them out in front. All kinds of desserts, confectionary and dry viands should be served on his right, while all soups etc., meat-essences, drinks, cordials, milk, Khada-Yusha, and Peya should be placed on his left. Bowls containing preparations of treacle, Raga-Shadava, and Sattaka should occupy a place midway between the two sets of bowls described above." This dining and serving etiquette from Sushruta Samhita is also adopted in medieval Indian cookbooks with some variations. The Manasollasa texts chapter Annabhoga describes dining etiquette, method of serving food and the way in which district officers and other nobles should be treated at dinner in the court.