The state of Andhra Pradesh is the largest producer of uranium in India. Tummalapalle village located in the Kadapa district of Andhra Pradesh is considered as one of the largest uranium reserves in the world. The continuous expedition in Tummalapalle in Kadapa and Koppunuru in Guntur led to the discovery of more uranium making this state the largest producer of uranium in India.
These reserves were officially commissioned in 2012 as they were equipped in catering to 25 percent of the requirement of uranium in the nuclear power plants in India. In 2000, when these mines were first found, they had about 14,300 tonnes of uranium oxide which rose to 85,000 tonnes in 2014. The total reserves of uranium oxide in the divided Andhra Pradesh reached about 1,22,000 tonnes in 2017. As per the official data, the Tummalapalle region in Kadapa district has rich resources amounting to 1,19,930 tonnes of uranium oxide in which 1,01,701 tonnes was of uranium metal. The Koppunuru region of the Guntur district contained 2,761 tonnes of uranium oxide in which 2,341 tonnes was of uranium metal.
The uranium ore reserves are found 1,000 meters deep in the mines. Just beside the Tummalapalle mine, a processing plant has been set up which converts the uranium ore into sodium diuranate for the use in nuclear power plants. According to the reports, the western part of the Palnadu region located on the right hand side of the River Krishna and the Paddagattu-Lambapur area on the left hand side have rich resources of uranium.
The Uranium Corporation of India Limited (UCIL) has constructed a mine in the Tummalapalle region which extends up to 7.6 km and has the efficiency of mining almost 3,000 tonnes of uranium ore on daily basis.