Ancient Sanskrit manuals for temple construction discovered in Rajasthan, in northwestern region of India, include Sutradhara Mandana's "Prasadamandana" (literally, manual for planning and building a temple) with chapters on town building. "Manasara shilpa" and "Mayamata", texts of South Indian origin, estimated to be in circulation by 5th to 7th century AD, is a guidebook on South Indian Vastu design and construction. "Isanasivagurudeva paddhati" is another Sanskrit text from the 9th century describing the art of building in India in south and central India. In north India, "Brihat-samhita" by Varāhamihira is the widely cited ancient Sanskrit manual from 6th century describing the design and construction of "Nagara" style of Hindu temples.