The British Takeover of Bengal Bengal's revolution was precipitated by a variety of unique circumstances. In 1755, the British dispatched Clive and his army to Madras because of the approaching Seven Years' War. Bengal's succession issues, combined with British mercantile inefficiency, precipitated a crisis at a time when the French in south India were still awaiting French reinforcements. The Nawab Of Bengal Ali Vardi Khan, Bengal's nawab and de facto ruler died in April 175