The "Mahabharata" describes one of its warrior heroes, Karna, as being the son of the Pandava mother Kunti and Surya. The sun god is said to be married to the goddess Ranaadeh, also known as Sanjnya. She is depicted in dual form, being both sunlight and shadow, personified. The goddess is revered in Gujarat and Rajasthan. The charioteer of Surya is Aruna, who is also personified as the redness that accompanies the sunlight in dawn and dusk. The sun god is driven by a seven-horsed Chariot depicting the seven days of the week and the seven colours of rainbow which are seen due to the dispersion by Surya's rays. In India, at Konark, in the state of Odisha, a temple is dedicated to Surya. The Konark Sun Temple has been declared a UNESCO World Heritage Site. Surya is the most prominent of the "navagrahas" or nine celestial objects of the Hindus. "Navagrahas" can be found in almost all Hindu temples. There are further temples dedicated to Surya, one in Arasavilli, Srikakulam District in AndhraPradesh, one in Gujarat at Modhera and another in Rajasthan. The temple at Arasavilli was constructed in such a way that on the day of Radhasaptami, the Sun's rays directly fall on the feet of the Sri Suryanarayana Swami, the deity at the temple. Chhath (Hindi: छठ, also called "Dala Chhath") is an ancient Hindu festival dedicated to Surya, the chief solar deity, unique to Bihar, Jharkhand and the Terai. This major festival is also celebrated in the northeast region of India, Madhya Pradesh, Uttar Pradesh, and parts of Chhattisgarh. Hymns to the Sun can be found in the Vedas, the oldest sacred texts of Hinduism. Practiced in different parts of India, the worship of the Sun has been described in the Rigveda. There is another festival called Sambha-Dasami, which is celebrated in the state of Odisha for the "surya". The sun is prayed to by South Indians during the harvest festival. In Tamil Nadu, the tamil people worship the sun god during the Tamil month of Thai, after a year of crop farming.