This battle caused complete destruction of the already declining Vijayanagara Empire. It was a civil war fought by the claimants for the throne of the Vijayanagara Empire. Jagga Raya challenged the Sriranga Authority on behalf of his nephew.
Venkatapati Raya, the ruler of the Vijayanagara Empire belonging to the Aravidu dynasty died without direct heirs. So he declared his nephew Sriranga II as heir. But Venkatapati's queen Bayamma, who had adopted a Brahmin boy named Chenga Raya her adopted son to succeed him to the throne. Her ambition caused a civil war in the empire. Bayamma's brother Gobburi Jagga Raya kidnapped and murdered the king and his whole family. Only his one son survived. This brutal murder caused anger in his court and among other nayak commanders. The commander of Imperial army Velugoti Yachama Nayaka revolted and supported the son of Sriranga II named Rama Deva Raya.
The location of the battle that took place is mentioned as Toppur by most historians, located on the banks of Cauvery river a mile of Grand Anicut, which is present day Thogur.[1]
The battle was won by the Raghunatha Nayak faction and Yachama Naidu, Rama Deva Raya, son of Sriranga II, who was only 13 years old and was crowned as Emperor.
It was the battle which caused the complete disintegration of the Vijayanagar Empire, which was reviving slowly. This civil war caused severe problems to the Vijayanagara Empire.