Renowned folk singer and balladeer Gaddar, who was popularly known for his revolutionary songs during the 1980s and later during the Telangana statehood agitation, passed away here on Sunday due to ill-health. 

Born as Gummadi Vittal Rao at Toopran in Medak district in 1949, the 77-year-old died due to lung and urinary problems and advanced age, Apollo Spectra Hospital said.