The Ochre Coloured Pottery culture is a 4th millennium BC to 2nd millennium BCBronze 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. The pottery had a red slip but gave off an ochre color on the fingers of archaeologists who excavated it, hence the name. It was sometimes decorated with black painted bands and incised patterns. It is often found in association with copper hoards, which are assemblages of copper weapons and other artifacts such as anthropomorphic figures. OCP culture was rural and agricultural, characterized by cultivation of rice, barley, and legumes, and domestication of cattle, sheep, goats, pigs, horses, and dogs. Most sites were small villages in size, but densely distributed. Houses were typically made of wattle-and-daub. Other artifacts include animal and human figurines, and ornaments made of copper and terracotta. OCP culture was a contemporary neighbor to Harappan civilization, and between 2500 BC and 2000 BC, the people of Upper Ganga valley were using Indus script. While the eastern OCP did not use Indus script, the whole of OCP had nearly the same material culture and likely spoke the same language throughout its expanse. The OCP marked the last stage of the NorthIndian Bronze Age and was succeeded by the Iron Ageblack and red ware culture and the Painted Grey Ware culture.
The term copper hoards refers to different assemblages of copper-based artefacts in the northern areas of the Indian Subcontinent that are believed to date from the 2nd millennium BC. Few derive from controlled excavations and several different regional groups are identifiable: southern Haryana/northern Rajasthan, the Ganges-Yamuna plain, Chota Nagpur, and Madhya Pradesh, each with their characteristic artefact types. Initially, the copper hoards were known mostly from the Ganges-Yamuna doab and most characterizations dwell on this material. Characteristic hoard artefacts from southern Haryana/northern Rajasthan include flat axes, harpoons, double axes, and antenna-hilted swords. The doab has a related repertory. Artefacts from the Chota Nagpur area are very different; they seem to resemble ingots and are votive in character. The raw material may have been derived from a variety of sources in Rajasthan, Bihar, West Bengal, Odisha, and Madhya Pradesh.