The fish diversity in Pakhal Lake, Khanapur Mandal, Warangal District, Telangana State, India, the survey was focused mainly on fish biodiversity and undertaken during the year 2013-2014. A total of 22 species of fishes belonging to 18 genera, 11 families were identified. Cyprinidae were found most family represented by 8 species followed by Anguillidae with 1 species, Bagridae with 2 species, Siluridae with 2 species, Notopteridae with 1 species, Channidae with 3 species, order Perciformes with 4 species and family Belonidae with 1 species. This was the systematic survey on the fish diversity of this lake. It is proposed that the scientific information on ichthyofaunal diversity and distribution status will surely help in serving the future purposes of sustainable exploitation and concurrent conservation of fish resources.