Each QS rating undergoes rigorous quality control overseen by the Quacquarelli Symonds (QS), the world’s largest global higher education network, Intelligence Unit in London. By Telangana Today Published Date - 9 May 2024, 10:40 PM Each QS rating undergoes rigorous quality control overseen by the Quacquarelli Symonds (QS), the world’s largest global higher education network, Intelligence Unit in London.