Then came the critical operation of a retreat across the plain among the swarms of the enemy's horse. The three captured guns were placed in the centre, the infantry was formed in platoons on each flank, the British field-guns distributed in the front, rear and intervals of the column. Against these two parallel lines of eight hundred resolute men not even the rush of ten thousand cavalry could prevail. The infantry halted at the word with ordered arms as coolly as on parade, and the gunners waited calmly, linstock in hand, while the wild horsemen whirled up to them, till the signal was given and a shower of grape laid men and horses in scores upon the plain. The havoc wrought by the British artillery and the sight of the infantry steady and immovable, reserving their fire, was too much for the native cavalry. They broke and fled in all directions, and Lawrence marched proudly back to his camp, having fought an action as skilful, as gallant, and as daring as ever was won by British officer on the blood-stained plains of India. The victory not only ensured the safe arrival of Lawrence's convoy from the south, but set the French and their allies at variance, Mysoreans and French mutually reproaching each other, and the Mahrattas impartially blaming both. Astruc resigned his command and was succeeded by M. Brennier, who continued the blockade of Trichinopoly. Lawrence being weak in numbers resolved not to hazard another general action, but marched with his army into Tanjore, with the double object of meeting a reinforcement that was on its way from Madras, and of persuading the wavering king to take his side and to furnish him with some native horse. He was successful in both matters, and after a month's absence turned back towards Trichinopoly, having obtained three thousand horse and two thousand foot from Tanjore, and one hundred and seventy Europeans and three hundred Sepoys from Fort St. David. [Sidenote: August 9/20.]