IOCL Recruitment 2026 is currently in full swing — Indian Oil Corporation Limited has released two major notifications this month: 470 Executive posts (Graduate Engineer, Officer-Marketing, Officer-Law, AQCO, Diploma Engineer) with the CBT scheduled for 24 September 2026, and 433 Apprentice posts with applications open till 6 September 2026. With exam dates now confirmed, solving IOCL Previous Year Question Papers is the single most effective step you can take right now to prepare.
In this guide, we cover branch-wise Non-Executive PYQ papers (2024) with direct download links, an overview of Executive-level PYQs (Graduate Engineer, Law, AQCO), the latest exam pattern, and a practical strategy to use these papers effectively before your exam.
Download Section: IOCL Non-Executive Question Paper 2024 PDF (Branch-Wise)
These are the branch-wise memory-based papers from the 2024 Non-Executive Personnel exam (held 29 September 2024).
| Branch / Post | Download Link |
| IOCL 2024 Engineering Assistant (Electrical) PYQ Paper | Download PDF |
| IOCL 2024 Engineering Assistant (Mechanical) PYQ Paper | Download PDF |
| IOCL 2024 Engineering Assistant (T&I) PYQ Paper | Download PDF |
| IOCL 2024 Junior Engineering Assistant- IV (Production) PYQ Paper | Download PDF |
| IOCL 2024 Junior Engineering Assistant- IV (Electrical) PYQ Paper | Download PDF |
| IOCL 2024 Junior Engineering Assistant- IV (Instrumentationl) PYQ Paper | Download PDF |
| IOCL 2024 Junior Engineering Assistant- IV (Mechanical) PYQ Paper | Download PDF |
| IOCL 2024 Junior Engineering Assistant- IV (P&U – O&M) PYQ Paper | Download PDF |
| IOCL 2024 Junior Engineering Assistant- IV(P & U) PYQ Paper | Download PDF |
| IOCL 2024 Technical Attendant -I PYQ Paper | Download PDF |
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Note: These are memory-based compilations shared by candidates who appeared for the 2024 exam, not the official paper released by IOCL.
IOCL Executive (Graduate Engineer / Officer / AQCO) Previous Year Papers
If you’re preparing for the 470-post Executive Recruitment 2026 (Graduate Engineer, Officer-Marketing, Officer-Law, Assistant Quality Control Officer, or Diploma Engineer), note that this is a separate exam level from the Non-Executive papers above, with a different syllabus weightage (heavier on GATE-level core engineering concepts for technical disciplines, and domain-specific law/chemistry knowledge for Law and AQCO posts).
The most recent confirmed IOCL Executive-level CBT (Graduate Engineer/Officer, Grade A) was held on 31 October 2025. We do not currently have a verified, official PYQ PDF from this cycle to host directly updated soon.
IOCL Law Previous Year Question Papers PDF and IOCL AQCO Previous Year Question Papers PDF Updated Soon.
IOCL Latest Exam Pattern 2026 (Non-Executive)
Before diving deeper into the papers, here’s the current CBT exam pattern for Non-Executive posts, which has remained consistent with heavy focus on domain knowledge.
| Section | Subject | Weightage |
|---|---|---|
| Section A | Technical / Domain Knowledge (Discipline Specific) | 75% |
| Section B | General Aptitude, Reasoning, English, General Awareness | 25% |
| Total Duration | 120 Minutes |
For Executive posts (2026 cycle), the CBT is a 100-question, 100-mark test split between domain-specific technical/professional knowledge and General Aptitude (Quantitative Aptitude, Reasoning, English), with a qualifying cut-off of 40% (35% for SC/ST/PwBD).
Why You Need IOCL Previous Year Question Papers
Competition for IOCL Recruitment 2026 is intense, and the syllabus can feel overwhelming. Previous year papers act as a compass — they don’t just tell you what to study, they show you how IOCL actually frames its questions.
By solving branch-wise 2024 papers (for Non-Executive posts) or reviewing available Executive-level practice material, you gain real insight into difficulty level, section-wise weightage, and the specific topics IOCL repeatedly tests. Candidates who practice consistently with past papers tend to perform noticeably better than those relying on theory alone.
Branch-Wise Breakdown: IOCL All Branches Question Paper 2024 PDF with Solutions
We have categorized the IOCL Previous Year Question Papers by branch to make it easier for you. Whether you are from Mechanical, Electrical, or Chemical, we have the IOCL All Branches Question Paper 2024 PDF with Solutions ready for you.
1. Mechanical Engineering
The 2024 Mechanical paper leaned heavily on Fluid Mechanics, Thermodynamics, and Strength of Materials. Practicing the numerical-heavy questions from this set will help you build speed for both Non-Executive and Executive-level Mechanical papers, since core concepts overlap significantly.
2. Electrical Engineering
The 2024 Electrical JEA paper focused on Electrical Machines and Power Systems, with several candidates finding circuit theory questions particularly tricky. Solving this set is a good way to identify and strengthen weak areas before your exam.
3. Instrumentation Engineering
Instrumentation is a smaller but highly competitive branch. Past papers show recurring questions on Transducers, Control Systems, and PID Controllers — these are worth prioritizing in your revision.
4. Chemical / Production (JEA)
This forms the core of most IOCL recruitment cycles. The Production JEA paper covers Mass Transfer, Heat Transfer, and Stoichiometry extensively. If you’re targeting Production-related posts, this is arguably the most important set to solve thoroughly, including reaction engineering questions that come up often.
5. Civil & Technical Attendant
We’ve also included the Civil Engineering and Technical Attendant papers. The Technical Attendant paper typically covers basic science and ITI-level questions, which are well represented in the 2024 set.
Refinery-Wise Trends in IOCL Papers
IOCL recruitment happens refinery-wise, and question difficulty can vary slightly depending on location:
- Panipat Refinery: The 2024 paper showed a marginally higher difficulty in the Aptitude section.
- Mathura Refinery: Candidates reported the technical section leaned more conceptual than numerical.
- Haldia Refinery: Questions tend to focus on practical, applied scenarios rather than pure theory.
- Paradip & Barauni: These often share a similar question pool with other units, so solving the full branch-wise set remains useful regardless of your target refinery.
How to Use IOCL Previous Year Papers Effectively
Simply downloading the papers isn’t enough — use them strategically:
- Time Yourself: Attempt each paper under real exam conditions (120 minutes, no breaks).
- Analyze Weaknesses: After solving, identify whether you lost more marks in the Technical section or the Aptitude section.
- Review Solutions Carefully: Don’t just check right/wrong — understand the shortcut methods and reasoning behind each answer.
- Go Beyond One Year: If possible, also look at 2022 and 2023 papers (available via the reference sources above) to spot recurring patterns, while prioritizing the most recent 2024 set as your primary reference.
IOCL Syllabus 2026 & Exam Strategy
To get the most out of these papers, map them against the official syllabus. When you download the IOCL Recruitment 2026 syllabus PDF, cross-reference it with the topics that repeatedly appear in past papers — such as Fluid Mechanics in Mechanical or Distillation in Chemical Engineering. This confirms which areas deserve extra revision time, whether you’re preparing for a Non-Executive or an Executive-level post.
People Also Ask (PAA)
Are IOCL Executive and Non-Executive exam papers the same ?
No. They are different exam levels with different syllabi. Executive posts (Graduate Engineer, Officer-Marketing, Officer-Law, AQCO, Diploma Engineer) test GATE-level core engineering or domain-specific professional knowledge, while Non-Executive posts (Engineering Assistant, JEA, Technical Attendant) focus more on ITI/diploma-level technical knowledge.
When is the next IOCL Executive exam in 2026 ?
The CBT for IOCL Executive Recruitment 2026 (470 posts) is scheduled for 24 September 2026, with the online application window open until 3 September 2026.
How many years of IOCL previous papers should I solve before the exam ?
Prioritize the most recent papers first — for Non-Executive posts, the 2024 set (from the actual 2024 cycle) is most representative of the current pattern. Supplement this with 2-3 older years if you have extra time, focusing more on concept revision than volume.
Is there an official IOCL previous year question paper released by the company ?
No. IOCL does not officially release its exam papers publicly. All previous year papers available online, including on this page, are memory-based compilations reconstructed by candidates who appeared for the exam, shared for practice purposes only.
What is the selection process after clearing the IOCL CBT ?
For Non-Executive posts, candidates move to a Skill/Proficiency/Physical Test (SPPT), which is qualifying in nature. For Executive posts, shortlisted candidates go through Group Discussion (GD), Group Task (GT), and a Personal Interview (PI), with the CBT carrying the highest weightage (85%) in the final merit.
FAQ: IOCL Previous Year Question Papers
Q1. Where can I download IOCL Non-Executive previous year papers for free ?
You can download the branch-wise 2024 memory-based papers from the table at the top of this article, covering Engineering Assistant, JEA, and Technical Attendant posts.
Q2. Do you have IOCL Executive-level (Graduate Engineer, Law, AQCO) previous papers ?
We don’t currently have our own verified PDF for the Executive-level cycle, but we’ve listed genuine third-party sources above where you can check for Engineer, Law, and AQCO practice material. We’ll add our own verified set here once sourced.
Q3. How does the IOCL Panipat Refinery paper differ from Haldia ?
The core technical syllabus remains the same across refineries; only minor variations in aptitude-section difficulty and question framing have been reported by candidates.
Q4. Is the IOCL Technical Attendant paper available in Hindi ?
The papers listed here are primarily in the standard exam format. For Hindi-medium practice material, check the reference platforms linked in the Executive PYQ section, which often provide bilingual sets.
Q5. What is the best way to prepare for IOCL Recruitment 2026 ?
Combine the official syllabus with consistent practice of previous year papers, timed mock attempts, and focused revision of your weak sections — this combination consistently helps candidates improve their score more than passive reading alone.
Q6. How many total posts are open in IOCL Recruitment 2026 right now ?
As of August 2026, IOCL has 470 Executive posts (applications close 3 September 2026) and 433 Apprentice posts (applications close 6 September 2026) open simultaneously.
Q7. Are solutions included with these IOCL previous year papers ?
Yes, the branch-wise papers linked above include worked-out solutions to help you understand the correct approach for each question type.
Q8. Where can I find the latest IOCL exam pattern for 2026 ?
The current CBT pattern for both Executive and Non-Executive posts is detailed in the “IOCL Latest Exam Pattern” section above, and in our full IOCL Recruitment 2026 notification guide.
Author’s Suggestions
Having tracked IOCL recruitment cycles closely, here’s practical advice: don’t underestimate the value of repeated practice. Core concepts and question styles often repeat across cycles, even when exact numbers change.
- Prioritize Recent Papers: The 2024 Non-Executive set is your strongest reference for the current pattern.
- Don’t Ignore Refinery Variations: Concepts remain largely universal across Panipat, Haldia, Mathura, and other refineries — solve broadly rather than narrowly.
- Accuracy Over Attempts: Past exam analysis shows accuracy plays a bigger role in final scores than the sheer number of questions attempted.
- Start Today: With the Executive CBT set for 24 September 2026, there’s limited time left — begin structured practice now rather than later.
Disclaimer
The IOCL Previous Year Question Papers provided in this blog are memory-based papers collected from candidates who appeared for the respective exams. These are intended for educational and practice purposes only. We do not claim these to be the official question papers released by Indian Oil Corporation Limited (IOCL does not officially publish its exam papers). For official updates on IOCL Recruitment 2026, please visit the official website iocl.com.
