In 1783 news of a preliminary peace between France and Great Britain reached India, resulting in the withdrawal of French support from the Mysorean war effort.
This resulted in the 1784 Treaty of Mangalore, restoring the status quo ante bellum under terms that company officials, such as Warren Hastings, found extremely unfavourable.
He descended through the passes of the Eastern Ghats, burning villages as he went, before laying siege to British forts in northern Arcot.
This decision gave the British time to shore up their defences in the south, and to despatch reinforcements under the command of Sir Eyre Coote to Madras.
[3] Coote, though repulsed at Chidambaram, defeated Hyder Ali in succession in the battles of Porto Novo[5] and Sholinghur, while Tipu was forced to raise the siege of Wandiwash, and besieged Vellore instead.
This forced Hyder Ali to realize that he could never completely defeat a power that had command of the sea, since British naval support contributed to the victory.
During the summer of 1782, company officials in Bombay sent additional troops to Tellicherry, from whence they began operations against Mysorean holdings in the Malabar.
Tipu's precipitate departure from the scene provided some relief to the British force, but Bombay officials had sent further reinforcements under General Richard Matthews to the Malabar in late December to relieve it before they learned of Hyder Ali's death.
Matthews and seventeen other officers were taken to Seringapatam, and from there to the remote hilltop prison of Gopal Drooge (Kabbaldurga) where they were seemingly forced to imbibe a lethal poison.
[6] On the east coast, an army led by General James Stuart marched from Madras to resupply besieged fortifications and to dispute Cuddalore, where French forces had arrived and joined with those of Mysore.
At the same time, troops from Stuart's army were joined with those of Colonel William Fullarton in the Tanjore region, where he captured the fortress at Palghautcherry in November, and then entered Coimbatore against little resistance.
The war was ended on 11 March 1784 with the signing of the Treaty of Mangalore,[4] in which both sides agreed to restore the others' lands to the status quo ante bellum.
Pursuant to the terms of the Treaty of Mangalore, the British did not participate in the conflict between Mysore and its neighbours, the Maratha Empire and the Nizam of Hyderabad, that began in 1785.