able to sustain their own kingdoms in central India. The Meenas and Gond Rajas of Garha-Mandla and Chanda are examples of an Adivasi aristocracy that ruled in this region, and were "not only the hereditary leaders of their Gond subjects, but also held sway over substantial communities of non-tribals who recognized them as their feudal lords." The historiography of relationships between the Adivasis and the rest of Indian society is patchy. There are references to alliances between Ahom Kings of Brahmaputra valley and the hill Nagas. This relative autonomy and collective ownership of Adivasi land by Adivasis was severely disrupted by the advent of the Mughals in the early 16th century. Rebellions against Mughal authority include the Bhil Rebellion of 1632 and the Bhil-Gond Insurrection of 1643 which were both pacified by Mughal soldiers. With the advent of the Kachwaha Rajputs and Mughals into their territory, the Meenas were gradually sidelined and pushed deep into the forests. As a result, historical literature has completely bypassed the Meena tribe. The combined army of Mughals and Bharmal attacked the tribal king Bada Meena and killed him damaging 52 kots and 56 gates. Bada's treasure was shared between Mughals and Bharmal. British period (c. 1857 – 1947) During the period of British rule, the colonial administration encroached upon the adivasi tribal system, which led to widespread resentment against the British among the tribesmen. The tribesmen frequently supported rebellions or rebelled themselves, while their raja looked negatively upon the British administrative innovations. Beginning in the 18th century, the British added to the consolidation of feudalism in India, first under the Jagirdari system and then under the zamindari system. Beginning with the Permanent Settlement imposed by the British in Bengal and Bihar, which later became the template for a deepening of feudalism throughout India, the older social and economic system in the country began to alter radically. Land, both forest areas belonging to adivasis and settled farmland belonging to non-adivasi peasants, was rapidly made the legal property of British-designated zamindars (landlords), who in turn moved to extract the maximum economic benefit possible from their newfound property and subjects. Adivasi lands sometimes experienced an influx of non-local settlers, often brought from far away (as in the case of Muslims and Sikhs brought to Kol territory) by the zamindars to better exploit local land, forest and labour. Deprived of the forests and resources they traditionally depended on