Kalibangan is a town located at on the left or southern banks of the Ghaggar (Ghaggar-Hakra River), identified by some scholars with Sarasvati River in Tehsil Pilibangan, between Suratgarh and Hanumangarh in Hanumangarh district, Rajasthan, India 205 km. from Bikaner. It is also identified as being established in the triangle of land at the confluence of Drishadvathi and Sarasvathi Rivers. The prehistoric and pre-Mauryan character of Indus Valley Civilization was first identified by Luigi Tessitori at this site. Kalibangan's excavation report was published in its entirety in 2003 by the Archaeological Survey of India, 34 years after the completion of excavations. The report concluded that Kalibangan was a major provincial capital of the Indus Valley Civilization. Kalibangan is distinguished by its unique fire altars and "world's earliest attested ploughed field".