Despite the suppression of the First Polygar War in 1799, rebellion broke out again in 1800. The Second war was more stealthy and covert in nature. The leaders operated more cohesive and united with people from Kerala and Mysore taking part. Also it marked the joining of entire west Tamil Nadu, Malabar and south Mysore regions (which was under British domain after the death of Tipu Sultan).Dheeran Chinnamalai commanded a vast army,He settled down at Odanilai and constructed a fort there to continue his struggle against the British, whom he defeated in battles at Cauvery in 1801, Odanilai in 1802 and Arachalur in 1804. Later, Dheeran Chinnamalai left his fort to avoid cannon attack and engaged in guerrilla warfare while he was stationed at Karumalai in the Palani region.