Indian National Earth Science Olympiad (IESO) 2026

A national-level earth sciences olympiad for school students that selects representatives to participate in the International Earth Science Olympiad (IESO). The programme tests knowledge across geosphere, atmosphere, hydrosphere and planetary science through a 90-minute multiple-choice exam. High-performing students are invited to a 25-day training camp, after which the top four students represent India at the international event.

Selection to a 25-day training camp including lectures, discussions, planetarium visits, laboratory and field research; top four students represent India at the International Earth Science Olympiad.

Only students with Indian nationality who are in grades IX, X or XI and have training from an accredited State Board, ICSE, CBSE or international board; students must be 18 years of age or older.

Application form released online on the official website, must be downloaded, completed with personal and educational details, attach passport photo if required, submit by the deadline and pay the application fee via offline demand draft/cash/money order.