there is no specific Telugu word for day to day usage.
nowadays word Paneer is directly used in Telugu script ( పనీర్ ) or పన్నీర్ (Panneer)
however, it can be called as paala virugu ( పాల విరుగు ) or junnu ( జున్ను )
Telugu words of paneer in Hindi script —> पनीर , पन्नीर , जुन्नु , पालविरुगु
wikipedia English article : http://en.wikipedia.org/wiki/Paneer
wikipedia Telugu article : http://te.wikipedia.org/wiki/పనీర్
wikipedia Hindi article : http://hi.wikipedia.org/wiki/पनीर