The Kalachuris of Karnataka, whose ancestors were immigrants into the southern deccan from central India, had ruled as a feudatory from Mangalavada (modern Mangalavedhe in Maharashtra). Bijjala II, the most powerful ruler of this dynasty, was a commander ("mahamandaleswar") during the reign of Chalukya Vikramaditya VI. Seizing an opportune moment in the waning power of the Chalukyas, Bijjala II declared independence in 1157 and annexed their capital Kalyani. His rule was cut short by his assassination in 1167 and the ensuing civil war caused by his sons fighting over the throne ended the dynasty as the last Chalukya scion regained control of Kalyani. This victory however, was short-lived as the Chalukyas were eventually driven out by the Seuna Yadavas.