Taking advantage of this, a sortie was resolved upon, and six hundred chosen men, under the command of Lieutenant-Colonel Draper and Major Brereton, with two field-pieces, rushed into the streets of the black town. Unluckily the drummers, who were all little black boys, struck up the "Grenadiers' March" too soon and gave warning to the French, who left off their drinking and plundering, and, running to their arms, drew up at a point where the narrow streets crossed at right angles. Those who were drunk were joined by those who were sober, till the whole number far exceeded that of the English detachment. If Bussy, who was at hand, had made one of the bold and rapid movements which he had been accustomed to make when acting on his own responsibility, he might have taken the English in rear. But he was sulky, and jealous of Lally, and remained inert. When Draper saw that he must retreat, he found that all his drummer-boys who should sound the recall had run away. He, however, managed to bring off his troops, leaving two field-pieces behind, and having lost or killed, wounded and prisoners, about two hundred men. The siege dragged on. Most of Lally's heavy artillery was still at sea, and a corps of sepoys captured and spiked his only 13-inch mortar, which was coming by land. All his warlike means were as deficient as those of the garrison were perfect, and dissensions and ill-will against him increased among his officers. For six weeks the French were without any pay, and during the last fifteen days they had no provisions except rice and butter. Then the ammunition of the besiegers failed. On the 15th February, 1759, he resolved on raising the siege. He had thrown away his last bomb three weeks before, and he had blazed away nearly all his gunpowder. Pouring forth invectives and blaming every one but himself, Lally decamped on the night of the 17th as secretly and expeditiously as he could. In March, 1760, Call was employed in reducing Karikal, and at the latter end of the year and in the beginning of 1761 he was employed as chief engineer under Sir Eyre Coote in the reduction of Pondicherry, which, after it had been battered furiously during two days, surrendered at discretion. Then the town and fortifications were levelled with the ground. A few weeks after the strong hill-fortress of Gingi surrendered, and the military power of the French in the Carnatic was brought to an end. In 1762 Call had the good fortune, when serving under General Cailland, to effect the reduction of the strong fortress of Vellore, one hundred miles west of Madras, which has since been the _point d'appui_ of the English power in the Carnatic.