In April 1797, the regiment proceeded from Colombo to Point Pedro, in Ceylon, and shortly afterwards embarked for Madras. It was removed from Fort St. George to Wallajahbad in October, but returned to Fort St. George in January, 1798. [Sidenote: 1798] The regiment proceeded from Fort St. George to Poonamallee in September, 1798, and continued at that station during the remainder of the year. The reduction of the power and resources of Tippoo Saib, effected by the treaty of Seringapatam in 1792, had weakened, but not extinguished, the evils consequent on his inveterate hatred of the British. The Sultan had entered into a negociation with the Governor of the Isle of France in 1798, and sent an embassy to Zemaun Shah, sovereign of Cabool, for the purpose of exciting him to an attack on the British possessions. Having also derived encouragement from the successes of Napoleon Bonaparte in Egypt, from which country the French Directory intended to act against the British dominions in India, Tippoo commenced augmenting his military force, and his hostile designs became every day more apparent. The Governor-General the Earl of Mornington (afterwards the Marquis Wellesley), seeing a rupture inevitable, resolved to anticipate the attack, and ordered the British army to take the field, and march into the heart of the dominions of the Sultan Tippoo Saib. [Sidenote: 1799] In conformity to these orders, Major-General George (afterwards Lord) Harris, who was serving with the local rank of lieut.-general, advanced with the army under his command, on the 11th of February, 1799, and entered the Mysore territory on the 5th of March. The SEVENTY-THIRD formed part of the second brigade under Colonel John Coape Sherbroke, Lieut.-Colonel of the thirty-third regiment. The army reached Mallavelly on the 27th of March, when on approaching the ground of encampment, the forces of Tippoo Sultan were discovered drawn up on a height at a few miles distance. The advanced piquets were attacked by the enemy, and a general action ensued. The enemy lost one thousand killed and wounded, and immediately retreated upon Seringapatam. On the following day the army advanced, and arrived before Seringapatam on the 5th of April, when preparations for the siege were commenced.