Homi Bhabha Centre for Science Education
Tata Institute of Fundamental Research

Indian National Olympiad - 2025

Physics, Chemistry, Biology, Astronomy & Junior Science

  • Announcements
    • INO 2025 final scores are now available. Check HBCSE Olympiad page for latest announcements.

    Information for Students

    1. Eligibility
      • For Astronomy / Biology / Chemistry / Physics :
        • Must be an Indian citizen. (OCI students are eligible to participate till OCSC stage, subject to qualification.)
        • Date of birth between 1 July 2005 and 30 June 2010, both days inclusive. Students must carry a valid proof of date of birth (Passport/ Aadhaar Card/ Birth Certificate/ Admit Card for Secondary Board Examination) to the exam centre.
        • Must be residing and studying in India since 30 November 2022 or earlier. OR Must be studying in an Indian school system since 30 November 2022 or earlier.
        • Must not have passed class 12 board examination earlier than 30 November 2024.
        • Must not have commenced (or planning to commence) studies in a university or equivalent institution by 1 June 2025.
      • For Junior Science :
        • Must be an Indian citizen. (OCI students are eligible to participate till OCSC stage, subject to qualification.)
        • Date of birth between 1 January 2010 and 31 December 2011, both days inclusive. Students must carry a valid proof of date of birth (Passport/ Aadhaar Card/ Birth Certificate/ Admit Card for Secondary Board Examination) to the exam centre.
        • Must be residing and studying in India since 30 November 2022 or earlier. OR Must be studying in an Indian school system since 30 November 2022 or earlier.
        • Must not have passed class 10 board examination earlier than 30 November 2024.
      • To be considered for selection to the Indian team for international Olympiads students must hold a valid Indian Passport before the beginning of the respective Orientation-cum-Selection Camp (OCSC). The date of expiry of the passport should be no sooner than six months after the conclusion of the relevant International Olympiad. If you do not have a valid Indian Passport, apply for it immediately. You will be required to provide a copy of your valid Indian passport at the beginning of OCSC, should you be selected for OCSC.
      • In addition, the selection of the members to the Indian team is subject to satisfying requirements such as age limit, parental and institutional consent, etc.
      • It is the student's responsibility to determine that he/she satisfies eligibility norms. If at some later stage it is found that the student does not meet eligibility norms, he/she may face disqualification from the programme.

        • For detailed information please see the Science Olympiad brochure on www.olympiads.hbcse.tifr.res.in.
    2. INO syllabus
      • Biology / Chemistry / Physics: The syllabus for INO is broadly equivalent to the senior secondary level (up to Class XII) of CBSE in the respective subject.
      • Astronomy: The syllabus for INAO is broadly equivalent to the senior secondary level (up to Class XII) of CBSE in Physics and Mathematics, elementary popular astronomy and basic knowledge of night sky observation.
      • Junior Science: The syllabus for INJSO is broadly equivalent to the secondary level (up to Class X) of CBSE.
      • For detailed syllabus of all subjects see https://olympiads.hbcse.tifr.res.in/how-to-prepare/syllabus/.
      • For all the INOs, questions and problems are usually non-conventional and of high difficulty level, comparable to International Olympiads.
    3. Travel
      • Students whose residence is at a distance of less than 100 km from INO centre will be deemed local. Students residing beyond 100 km from the INO centre will be deemed outstation.
      • Local students will be paid a fixed flat amount of Rs. 150/-per day. Outstation students appearing for INO will be paid fixed flat amount of Rs. 600/- as travel allowance.
      • Special TA eligibility for students from selected states/Union Territories:

        • Student From INO Centre TA Eligibility
        NE StatesGuwahati (preferred)Economy class airfare to Guwahati
        NE StatesKolkata Economy class airfare to Kolkata
        Jammu & Kashmir, LadakhDelhi/ChandigarhEconomy class airfare to Delhi/Chandigarh
        Andaman & NicobarKolkata/ChennaiEconomy class airfare to Kolkata/Chennai
        LakshadweepKochiEconomy class airfare to Kochi

        For choice of centres other than the above, travel allowance will be fixed flat amount of Rs. 600/- . For air reimbursement,
        1. Tickets must be booked through either IRCTC, M/s Balmer Lawrie & Co. Ltd. or M/s Ashok Tours and Travels.
        2. Original ticket and onward journey boarding pass must be submitted.

      • Overseas students are not entitled to any travelling allowance.
    4. Accommodation and Boarding
      • No accommodation and boarding will be provided by the local Centre Coordinator for the outstation candidates.
      • Outstation students will be paid a fixed flat lodging and boarding allowance of Rs.800/- per day. No expenses for lodging and boarding for local students will be provided.