It took place a year after the death of the beloved Alivardi Khan, whose nephew was killed by the son of the perfidious Mir Jafar following it.  
The commander of the losing army's right wing betrayed his commander by advising him to abandon the field, after which he told the opposing army's commander to attack at once.  The winning army took shelter in an orchard on the banks of the river Baggiruttee, which proved helpful when a sudden rainstorm soaked the cannon of their opponents.  It took place a year after the death of the beloved Alivardi Khan, whose nephew was killed by the son of the perfidious Mir Jafar following it.  Though the winning army only numbered about 3,000 men, it defeated a force of over 50,000 men led by Surajah Dowlah, who had made the battle inevitable by killing a number of prisoners in a small room in Calcutta.  FTP, name this engagement of 1757, in which an army under Robert Clive established British dominance over Bengal.
The commander of the losing army's right wing betrayed his commander by advising him to abandon the field, after which he told the opposing army's commander to attack at once.  
the battle of Plassey