The Kundu River also known as Kunderu, Kumudvathi is a tributary of the Penna River in the Rayalaseema region of Andhra Pradesh, India. Originating as a spring near the village of Uppalapadu in Orvakal Mandal of Kurnool District, it goes through many changes before merging with the Penna at kamalapuram of Kadapa District. It is known for frequent floods that bring heavy damage to the Nandyal and Koilkuntla areas, and hence it is popularly called the "Sorrow of Nandyal." But nowadays Nandyal town became a big town with huge population so that the drainage water is discharged to the Kundu river without prior treatment. Industrialists focused their vision at more and more profits and they polluted the river to the maximum extent. The villagers who are living at down flow of the river from Nandyala are suffering with different skin diseases. The pollution impacts even animals health too. In ancient times this river was known as the Kumudvathi. There is a saying in Rayalaseema that whoever drinks the water of the Kundu will gain enormous courage to face enemies. The valley of the Kundu is known as Renadu and is symbolic of the term "Renati Pourusham."[1]