IOTL, the Battle of Buxar and its aftermaths laid the foundations which would ultimately lead to the establishment of the British Raj. However, the battle was won not because of the BEIC's strength, but because of the weakness of the fragmented coalition armies of the Mughals, Awadh and Bengal. In an ATL where the coalition armies launch a coordinated attack against Hector Munro's army and achieve a decisive victory, what happens next? Are the British forced to withdraw from India? Can the Mughal Empire endure ITTL, or will its demise be more akin to that of the Qing Dynasty in OTL's China? And can any of the kingdoms in India repel colonial incursions and pull off a Meiji-style modernisation?