UPSC CSE 2010 Rank 7. Karthik Gurunathan Iyer is a 2011 batch Indian Foreign Service (IFS) officer. Hailing from Nagpur, Maharashtra, he cleared the UPSC Civil Services Examination in his first attempt at the age of 22. An alumnus of Fergusson College, Pune, he pursued a B.Sc. (Hons) in Physics and later enrolled in an MA in Political Science through IGNOU. His passion for representing India on the global stage led him to choose the IFS.