Telugu Desam Party BC Cell State vice president Putta Narender has found fault with the Municipal Corporation of Karimnagar authorities for increasing the property tax in an unscientific manner. He charged the Municipal authorities on Friday of increasing the property tax by 3,000% in some cases in the name of GIS (geographical information survey). He said that the authorities had conducted the GIS survey only in some localities and increased property tax for all residents in the town.