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The physics olympiad is one of the few competitions in India that rewards deep thinking over speed. It is also less mysterious than it looks. All the official information sits on two websites, and you can start preparing with free past papers.
How does the physics olympiad work in India?
The Homi Bhabha Centre for Science Education (HBCSE) is the nodal centre for India's olympiad programme. According to its stages page, the science olympiads run in five stages:
National Standard Examination in Physics (NSEP). Organised by the Indian Association of Physics Teachers (IAPT), held in late November at centres across the country. Objective-type questions.
Indian National Physics Olympiad (INPhO). About 400 of the best NSE performers per subject qualify. Held in late January, run by HBCSE, with objective and long questions.
Orientation-cum-Selection Camp (OCSC). About 40 top INO students per subject go to HBCSE between April and June for theory and experimental training and tests.
Pre-departure training for the selected team at HBCSE.
International Physics Olympiad (IPhO). India sends a team of 4 to 5 students per subject.
HBCSE's page says the first two stages "do not necessarily require any specialised coaching outside the regular school system". It also says the NSE registration fee of Rs 300 is the only fee a student pays in the whole process up to the international olympiads.
Who can take part, and when?
The HBCSE Science Olympiad 2026-27 brochure sets the rules for this cycle. Among the conditions: you must be in Class X, XI or XII when you enrol, born between 1 July 2007 and 30 June 2012, and not have finished Class XII board exams before 30 November 2026. Read the full list in the brochure, as there are residence and other conditions too.
For 2026-27, the Science Olympiad 2026-2027 page lists:
NSEP on 22 November 2026, 08:30 to 10:30.
Student enrolment from 21 August to 14 September 2026, now closed for this cycle.
INPhO on 31 January 2027. Students selected for the INOs must register on the HBCSE website to get their admit cards.
If you missed enrolment this year, note the August-September window and plan for next year's cycle. Dates change each year, so always check the current page.
What is on the paper?
The brochure describes NSEP as 48 single-correct multiple-choice questions (+3, −1) and 12 multiple-correct questions worth six marks each, where you get credit only if you mark all correct options and no wrong ones. HBCSE's syllabus page says the syllabus is broadly equivalent to CBSE up to Class XII, but warns that olympiad questions "are usually non-conventional and of high difficulty level".
How should you prepare?
Start with INPhO past papers. HBCSE publishes past papers and model solutions. Attempt one INPhO problem a day, untimed, and give it at least 45 minutes before reading the solution.
Learn from the solution properly. After reading it, close it and rewrite the solution yourself the next day. George Polya's method in our post on How to Solve It is a good structure.
Build estimation and checking habits. Olympiad problems often have no options. Check every answer with units and limiting cases. Our guide to dimensional analysis checks helps.
Practise the objective format closer to November. IAPT links to past NSE papers from its site. Do two or three under time, and practise the multiple-correct questions, where partial guessing earns nothing.
Do experiments. Later stages test experimental skill. Any hands-on lab work in school, done carefully with error analysis, counts as preparation.
Getting help with hard problems
Olympiad problems often turn on picturing a situation clearly: a rolling body, a field around a charged shape. The Fermi Simulation Lab has interactive simulations for ideas that are easier to see than to read, and the Fermi Problem Library has a step-by-step solver that explains reasoning. Use them after your own attempt, not instead of it.
This week, download one INPhO paper and attempt its first problem with no time limit.
