In course of UPSC coaching, he has mastered various subjects like Economics, History, Science, Geography, Polity, Agriculture etc. and successfully taught all these subjects to the students, earing name and fame for these subjects, not through any conscious blowing ones own trumpet- type of advertising, but through slow, silent and more reliable month-to-month publicity. Teaching so many subject single handly has earned him a sobrique ‘one man army’. He has authored quite a few books for the civil services in Marathi as well as English, which are known, the testimony of the students, for their simplicity, reliability, cost-effectivity and relevance. The popularity of the books testifies the author’s ability to discern what is important and what is not for the civil services exam. Bhagirath IAS Academy’ was established by Shree Ranjan Kolambe in 2007. It has earned renown as one of the best UPSC and MPSC classes in Pune within a very short period. ‘Trustworthy’ is the most important adjective earned by the Academy under the untiring efforts of its able director. Its motto “exceeding excellence” serves as a constant reminder to the Academy and to its students to long for and stride along the path leading to excellence, not just in studies but in a larger goal of life as well.