Class 11

Olympiads for Class 11.

17 olympiads are open to Class 11 students. Here is each one, when it usually happens, and how to prepare without overdoing it.

Olympiads a Class 11 student can sit

Olympiads a Class 11 student can sit
OlympiadRun bySubjectsClassesFirst stage usually
SOF IMO
International Mathematics Olympiad
Science Olympiad Foundation (SOF)Maths, ReasoningClasses 1–12October to December
SOF ISO (NSO)
International Science Olympiad
Science Olympiad Foundation (SOF)Science, ReasoningClasses 1–12October to December
SOF IEO
International English Olympiad
Science Olympiad Foundation (SOF)EnglishClasses 1–12September to November
SOF ICO
International Commerce Olympiad
Science Olympiad Foundation (SOF)CommerceClasses 11–12November to January
SilverZone iOM
International Olympiad of Mathematics
SilverZone FoundationMaths, ReasoningClasses 1–12October to December
SilverZone iOS
International Olympiad of Science
SilverZone FoundationScience, ReasoningClasses 1–12October to December
SilverZone iOEL
International Olympiad of English Language
SilverZone FoundationEnglishClasses 1–12October to December
SilverZone iIO
International Computer Science Olympiad
SilverZone FoundationComputers, ReasoningClasses 1–12September to November
Math Kangaroo India
Mathematical Kangaroo Competition
International Olympiad Academy (Kangourou sans Frontières member for India)MathsClasses 1–12April
IOQM
Indian Olympiad Qualifier in Mathematics
Mathematics Teachers’ Association (India) and HBCSEMathsClasses 8–12September
RMO and INMO
Regional Mathematical Olympiad and Indian National Mathematical Olympiad
Homi Bhabha Centre for Science Education (HBCSE)MathsClasses 8–12November
IMO
International Mathematical Olympiad
HBCSE, which selects India’s teamMathsClasses 8–12September
NSEP
National Standard Examination in Physics
Indian Association of Physics Teachers (IAPT) and HBCSEPhysicsClasses 10–12November
NSEC
National Standard Examination in Chemistry
Indian Association of Physics Teachers (IAPT) and HBCSEChemistryClasses 10–12November
NSEB
National Standard Examination in Biology
Indian Association of Physics Teachers (IAPT) and HBCSEBiologyClasses 10–12November
NSEA
National Standard Examination in Astronomy
Indian Association of Physics Teachers (IAPT) and HBCSEAstronomyClasses 10–12November
ICO (ZIO, ZCO, INOI)
Indian Computing Olympiad
Indian Association for Research in Computing Science (IARCS)InformaticsClasses 1–12November to December

Ado is not affiliated with any of these olympiads or their organisers.

What olympiads look like in Class 11

Class 11 changes the olympiad picture in two ways. First, students have chosen a stream, so olympiads now map onto the subjects they actually study, whether that is physics, chemistry, biology, maths, commerce or the humanities. Second, the senior stages of the national olympiad pathway in science, aimed mainly at Class 11 and 12 students, become the natural next step alongside the maths pathway, and these are some of the most demanding exams a school student in India can sit.

School olympiads continue for Class 11, built on the Class 11 syllabus. Many students sit fewer of them than before, and some none at all. They remain multiple choice, written in school, and are a reasonable check on the new, much harder Class 11 chapters.

The senior pathway papers in physics, chemistry, biology and astronomy start well past the Class 11 textbook in depth. Their first stages are written at exam centres, usually with negative marking, and later stages bring long-answer papers, practical tests and camps for a small number of students. The maths pathway continues on its own track, with proofs at the later stages. Each olympiad’s page on the olympiads hub gives its eligibility and stages.

Many Class 11 students are also preparing for engineering or medical entrance exams. Olympiad and entrance preparation share a lot of ground, but they reward different habits: entrance exams value speed across a wide syllabus, while olympiad papers value depth on fewer, harder problems. Knowing which one a given week is for avoids a lot of muddled effort.

How much to prepare

A student serious about a senior pathway subject usually spends six to ten hours a week on it through most of the year, much of it overlapping with entrance preparation in that subject. A student sitting only school olympiads needs very little extra: a few timed sample papers in the weeks before each exam.

At this age, the student should set the hours, not the parent. A sixteen-year-old who chose the olympiad will work far more steadily than one who was signed up for it.

A simple plan

A year plan for one pathway subject:

  1. April to May: finish the Class 11 chapters the subject depends on, in more depth than school requires. Pick one or two problem books and stay with them.
  2. June to August: two or three sessions a week of olympiad-level problems, untimed, with full written solutions.
  3. September to October: past first-stage papers under timed conditions, one a week, each reviewed in detail. Note the negative-marking rule and practise leaving questions blank when unsure.
  4. The first-stage exam: usually in the second half of the year; check the date on the organiser’s site early.
  5. After it: return to school and entrance work. If selected for the next stage, plan it with a teacher who knows the format.
  6. January to March: school annual exams, then a short break before Class 12 begins.

What helps, and what doesn’t

What helps:

  • Choosing one pathway subject, usually the one the student enjoys most, rather than spreading across three.
  • A teacher or senior student who has sat the exam. Advice on the format saves weeks.
  • Keeping a written problem log: the problem, the idea that unlocked it, and the mistake that blocked it.
  • Parents handling logistics, such as exam centres, travel and dates, so the student can focus on the work.

What doesn’t:

  • Treating the olympiad as entrance prep with extra steps. Speed drills don’t build the depth olympiad problems need.
  • Sitting every olympiad on offer. Senior papers each need real preparation; doing several at once usually means doing all of them poorly.
  • Deciding success by selection alone. The problem-solving built for these papers lasts well beyond them.
  • Giving up sleep for extra hours. At sixteen, it is the most common way to lose a term’s work.

The olympiad prep guide covers reviewing mistakes and avoiding over-drilling, and the calendar shows where the senior pathway stages usually fall.

Where daily practice fits

A short daily quiz is a light way to keep subjects outside a student’s stream from fading. Ado’s free daily quiz is 8 questions, including a 60-second sprint, across maths, science, English, GK, reasoning, social studies and current affairs, ranked only against students the same age. The Ado Rank builds from a student’s top three subjects, never resets and can’t be bought; it is a habit, not olympiad preparation.

Class 11 practice questions

Other classes

The olympiad calendar, month by month · How to prepare for an olympiad

Practice a little, every day

Ado is a free daily quiz in maths, science, English, GK and reasoning, ranked only against students the same age. The Ado Rank it builds never resets.

Set up for your child

For parents of students aged 6–17.

What the Ado Rank is