<P> The lack of basic co-ordination among the three disparate allies was responsible for their decisive defeat . </P> <P> Mirza Najaf Khan commanded the right flank of the Mughal imperial army and was the first to advance his forces against Major Hector Munro at daybreak; the British lines formed within twenty minutes and reversed the advance of the Mughals . According to the British, Durrani and Rohilla cavalry were also present and fought during the battle in various skirmishes . But by midday, the battle was over and Shuja - ud - Daula blew up large tumbrils and three massive magazines of gunpowder . </P> <P> Munro divided his army into various columns and particularly pursued the Mughal Grand Vizier Shuja - ud - Daula the Nawab of Awadh, who responded by blowing up his boat - bridge after crossing the river, thus abandoning the Mughal Emperor Shah Alam II and members of his own regiment . Mir Qasim also fled with his 3 million rupees worth of Gemstones and later committed suicide . Mirza Najaf Khan reorganised formations around Shah Alam II, who retreated and then chose to negotiate with the victorious British . </P> <P> Historian John William Fortescue claimed that the British casualties totalled 847: 39 killed and 64 wounded from the European regiments and 250 killed, 435 wounded and 85 missing from the East India Company's sepoys . He also claimed that the three Indian allies suffered 2,000 dead and that many more were wounded . Another source says that there were 69 European and 664 sepoy casualties on the British side and 6,000 casualties on the Mughal side . The victors captured 133 pieces of artillery and over 1 million rupees of cash . Immediately after the battle Munro decided to assist the Marathas, who were described as a "warlike race", well known for their relentless and unwavering hatred towards the Mughal Empire and its Nawabs and the Sultanate of Mysore . </P>

Who were defeated in the battle of buxar