Looking round the field, Clive saw that two of the divisions which formed the arc of the circle were marching back towards the intrenchments; but that the third, that on the left of their line, had wheeled round and was marching towards the rear of the grove. Not having received the letter which Meer Jaffier had written to him, he supposed that this movement indicated an intention to attack his baggage; and he therefore detached some European troops, with a field gun, to check the advance. Upon the gun opening fire, the enemy's division halted. It ceased its advance, but continued apart from the rest of the enemy. In the meantime, Clive had arrived upon the mound which Saint Frais had left; and, planting his guns there, opened fire upon the enemy within their intrenchments. The Indian soldiers and inferior officers, knowing nothing of the treachery of their chiefs, were indignant at being thus cannonaded in their intrenchments by a foe so inferior in strength; and horse, foot, and artillery poured out again from the intrenchments, and attacked the British. The battle now raged in earnest. Clive posted half his infantry and artillery on the mound of the tank nearest to the enemy's intrenchments, and the greater part of the rest on rising ground, two hundred yards to the left of it; while he placed a hundred and sixty picked shots, Europeans and natives, behind the tank close to the intrenchments, with orders to keep up a continuous musketry fire upon the enemy, as they sallied out. The enemy fought bravely. Saint Frais worked his guns unflinchingly at the redoubt, the infantry poured in volley after volley, the cavalry made desperate charges right up to the British lines. But they had no leader, and were fighting against men well commanded, and confident in themselves. Clive observed that the division on the enemy's extreme left remained inactive, and detached from the army; and it, for the first time, struck him that this was the division of Meer Jaffier. Relieved for the safety of his baggage, and from the attack which had hitherto threatened in his rear, he at once determined to carry the hill in advance of Saint Frais's battery, and the redoubt occupied by the French leader. Strong columns were sent against each position. The hill was carried without opposition, and then so heavy and searching a fire was poured into the intrenched camp that the enemy began to fall back, in utter confusion. Saint Frais, finding himself isolated and alone in the redoubt, as he had before been on the mound, was forced to retire.