Second Anglo-Mysore War (1780-1784)
Haidar Ali accused the English of breach of faith and non-observance of the Treaty of Madras when in 1771 he was attacked by the Marathas, and the English failed to come to his aid.
Haidar forged an anti-English alliance with the Marathas and the Nizam but the English detached both the Marathas and the Nizam from Haidar’s side.
Haidar faced the English boldly only to suffer a defeat at Porto Novo in November 1781 but he regrouped his forces and defeated the English and captured their commander.
The war was carried on by Tipu Sultan after the death of Haidar in 1782.
Fed up with an inconclusive war, both sides opted for peace, negotiating the Treaty of Mangalore (March 1784) under which each party gave back the territories it had taken from the other.
The Second Anglo-Mysore War was ended on 11 March 1784 with the signing of the Treaty of Mangalore, in which both sides agreed to restore the others’ lands to the status quo ante bellum. The treaty is an important document in the history of India because it was the last occasion when an Indian power dictated terms to the company.
The cause of the second Anglo-Mysore War (1780-84) was the growing dissatisfaction of Hyder Ali and the Nizam of Hyderabad with the English company.