Choose a year below. The paper and key links open the organiser’s original PDFs. “Answer key” means answer choices; “solution PDF” means a separate explanation document. Availability is stated for each year.
Use the right format
The 2022–2025 papers use the modern 60-question structure. The 2021 entry is IOQC 2020–21 Part I, with 32 questions and a shorter duration. Keep that distinction when comparing scores or setting a timer.
Additional official papers
- NSEC 2024 Delhi NCR paper, Code 35 · matching final key
- IOQC 2021–22 Part I, held 20 March 2022 · answer key — 32 questions, 120 marks, 75 minutes.
A useful three-pass review
- Attempt: follow the time limit printed on that paper and keep the key closed.
- Diagnose: label each error as a concept gap, a calculation error, a reading error or an uncertain guess.
- Re-solve: return to missed questions after two days and write why each selected option works.
Do not compare percentages across different paper formats as if they measured exactly the same difficulty.
Sources & verification
Exam information checked 20 October 2026. Subsequent official notices take precedence.