The ISCO is a national- and international-level school olympiad conducted by SilverZone Foundation, a well-known Indian organisation that conducts subject-based olympiad examinations for school students. As part of the SilverZone International Social Studies Olympiad series (hosted at silverzone.org/isso), the exam assesses students on social-studies concepts such as history, geography and civics, along with general awareness, helping identify and nurture talent at the school level. It is held for students across various classes, conducted school-wise in offline mode, and offers ranks, medals and recognition to high performers. Participation is through registered schools as per the SilverZone schedule for the academic session. This page covers complete ISCO details – eligibility, exam pattern, important dates, application process and preparation tips.