"may only reflect a change in the focus of settlement organization from that which was the pattern of the earlier Harappan phase and not cultural discontinuity, urban decay, invading aliens, or site abandonment, all of which have been suggested in the past." Jhukar and Jhangar culture (1900 - 1300 BCE) Jhukar Phase was a Late Bronze Age culture that existed in the lower Indus Valley, i.e. Sindh, during the 2nd millennium BC. Named after the archaeological type site Jhukar in Sindh, it was a regional form of the Late Harappan culture, following the mature, urban phase of the civilization. Jhukar phase was followed by the Jhangar Phase, which is a non-urban culture, characterised by "crude handmade pottery" and "campsites of a population which was nomadic and mainly pastoralist," and is dated to approximately the late second millennium BCE and early first millennium BCE. In Sindh, urban growth began again after approximately 500 BCE. Vedic period (1500 – 500 BCE) in North Indian subcontinent Together with the Gandhara grave culture and the Ochre Coloured Pottery culture, the Cemetery H culture is considered by some scholars as a factor in the formation of the Vedic civilization. Wilhelm Rau (1972) has examined the references to pottery in Vedic texts like the Black Yajur Veda and the Taittiriya Samhita. According to his study, Vedic pottery is for example hand-made and unpainted. According to Kuzmina (1983), Vedic pottery that matches Willhelm's Rau description cannot be found in Asia Minor and Central Asia, though the pottery of Andronovo culture is similar in some respects. Ochre Coloured Pottery culture (2000-1500 BCE) in Eastern Punjab, Western UP and Rajasthan Ochre Coloured Pottery culture (OCP) is a 2nd millennium BC Bronze Age culture of the Indo-Gangetic Plain, extending from eastern Punjab to northeastern Rajasthan and western Uttar Pradesh. It is considered a candidate for association with the early Indo-Aryan or Vedic culture. Early specimens of the characteristic ceramics found near Jodhpura, Rajasthan, date from the 3rd millennium (this Jodhpura is located in the district of Jaipur and should not be confused with the city of Jodhpur). Several sites of culture flourish along the banks of Sahibi River and its tributaries such as Krishnavati river and Soti river, all originating from the Aravalli range and flowing from south to north-east direction towards Yamuna before disappearing in Mahendragarh district of Haryana. The culture reached the Gangetic plain in the early 2nd