IOCL Recruitment 2026: 470 Graduate Engineer, Officer & Diploma Engineer Posts – Apply Online by September 3

Indian Oil Corporation Limited (IOCL), India’s largest Maharatna Central Public Sector Enterprise under the Ministry of Petroleum & Natural Gas, has invited online applications for 470 posts of Graduate Engineer, Officer (Marketing), Law Officer, Assistant Quality Control Officer, and Diploma Engineer across its refineries, pipelines, and marketing divisions. This recruitment is notified through Advertisement No. IOCL/CO-HR/RECTT/2026/01, dated 14 August 2026, and online applications opened the same day. This is a highly sought-after PSU Grade A/A0/E0 opportunity offering a permanent, pensionable-style career with strong pay and allowances. Below is a complete, verified guide to IOCL Recruitment 2026 covering vacancy details, eligibility, application fee, selection process, salary, and the step-by-step application process.

Quick Overview

Important Dates

• Notification & online application start: 14 August 2026
• Last date to submit online application: 3 September 2026 (1700 hrs)
• Age eligibility reckoning date: as on 1 July 2026
• Admit card issuance: 15 September 2026
• Computer Based Test (CBT): 24 September 2026 (tentative, subject to change)

Candidates should note that IOCL does not accept applications after the closing date, and no offline or postal applications are entertained.

Vacancy Details

A total of 470 vacancies have been notified across three grades. The discipline-wise break-up is as follows:

Vacancies are further sub-divided by category (UR/EWS/OBC-NCL/SC/ST) and include reservation for PwBD candidates across grades, as detailed in the official notification and the separate vacancy-breakup PDF.

Eligibility Criteria

Educational Qualification

• Graduate Engineer (Grade A): Full-time B.Tech/BE or equivalent degree from an AICTE/UGC-recognised institution in the relevant discipline, with a minimum of 65% marks (General/EWS/OBC-NCL) or 55% marks (SC/ST/PwBD).
• Officer – Marketing (Grade A): Full-time 2-year MBA or equivalent PGDBA with specialisation in Marketing Management, minimum 60% (General/EWS/OBC-NCL) or 55% (SC/ST/PwBD) marks.
• Law Officer (Grade A): Graduate degree plus LLB, or a 5-year integrated LLB, from an institution recognised by the Bar Council of India, with minimum 60%/55% marks and at least 2 years of post-qualification legal experience (as on 30 June 2026).
• Assistant Quality Control Officer (Grade A0): Master’s degree in Chemistry with minimum 60%/55% marks and at least 2 years of post-qualification experience in testing/R&D/quality control in a petroleum, petrochemical, or NABL-accredited laboratory.
• Diploma Engineer (Grade E0): Full-time 3-year Diploma in Electrical, Mechanical, or Safety Engineering from an AICTE/UGC/State Board-recognised institution, minimum 65% (General/EWS/OBC-NCL) or 55% (SC/ST) marks. Candidates holding a higher qualification such as BE/B.Tech, MBA, CA, CS, MCA, or PhD are not eligible for this post. Because the role involves safety-critical field duties in a hazardous industry, PwBD candidates are not eligible for Diploma Engineer posts.

Age Limit (as on 1 July 2026)

Standard age relaxation applies: OBC-NCL candidates get 3 additional years, SC/ST candidates get 5 additional years, and PwBD candidates get 10 additional years over the applicable limit for their category.

Application Fee

Fee can be paid online through debit card, credit card, internet banking, IMPS, mobile wallets, or UPI. Candidates are advised to reconfirm the exact fee on the live application form before making payment, since fee structures are occasionally revised.

Selection Process

Selection for all posts is made through a three-stage process:

1. Computer Based Test (CBT): An objective test of 100 marks in two fixed-order sections – Section A (General Aptitude) followed by Section B (Domain Knowledge relevant to the discipline applied for). Each question carries 1 mark, with 0.25 marks deducted for every incorrect answer.
2. Group Discussion (GD) & Group Task (GT): Shortlisted candidates, arranged in descending order of CBT marks within their domain, are called for GD/GT.
3. Personal Interview (PI): Candidates who qualify GD/GT proceed to the final interview stage.

The final merit list is based on a weighted composite score: CBT carries 85% weightage, GD & GT carries 5%, and PI carries 10%. To qualify the CBT, General/EWS/OBC-NCL candidates need a minimum of 40% in each section and 45% overall; SC/ST candidates need 35% in each section and 40% overall; PwBD candidates need 25% in each section and 30% overall. Candidates must also secure at least 40% in GD/GT and PI individually. Merely qualifying the CBT does not guarantee shortlisting for GD/GT and PI – only the highest-ranked candidates within each domain, up to the number decided by IOCL, are called forward.

Salary / Pay Scale

In addition to basic pay, selected candidates receive Dearness Allowance, House Rent Allowance, Transport Allowance, medical benefits, Provident Fund, and gratuity as per corporation rules. Selected candidates are required to execute a service bond – ₹3 lakh (General category) or ₹50,000 (SC/ST/EWS/OBC-NCL/PwBD) for Grade A, and ₹2 lakh (General) or ₹35,000 (reserved categories) for Grade A0/E0 – with a minimum service commitment of 3 years from the date of joining. The post carries All India transfer liability, meaning selected candidates may be posted at any IOCL location, including refineries, pipeline installations, and marketing offices across the country.

How to Apply

1. Visit the official IOCL recruitment portal at ibpsreg.ibps.in/iocljun26 (linked from the “Latest Job Opening” page on iocl.com).
2. Register with a valid email ID and mobile number to generate your login credentials.
3. Fill in the online application form with personal, educational, and category details carefully.
4. Select the relevant post and discipline you are eligible for – only one application per candidate is permitted.
5. Upload your recent photograph (captured April 2026 or later, size 4.5cm × 3.5cm), signature in black ink, and left thumb impression as per the specifications given in the notification.
6. Upload the required supporting documents (educational certificates, category/age-relaxation certificates, experience certificates where applicable) in the prescribed format and file size.
7. Pay the application fee online, if applicable to your category.
8. Review all entries carefully – incorrect details can lead to rejection at the scrutiny or document-verification stage.
9. Submit the application and save/print the confirmation for your own records.

Documents Required

• Matriculation/10th standard certificate (as proof of date of birth)
• Degree/diploma certificate and mark sheets as proof of educational qualification
• Category certificate (SC/ST/OBC-NCL/EWS), in the prescribed proforma, if claiming reservation
• PwBD certificate and Unique Disability ID (UDID) card, if applying under the persons-with-benchmark-disability category (not applicable for Diploma Engineer posts)
• Experience certificate(s) on official letterhead, for Law Officer and Assistant Quality Control Officer applicants claiming post-qualification experience
• Aadhaar card, recommended as the primary ID document for smooth verification
• Recent passport-size photograph and signature, scanned as per portal specifications

If you need help preparing your Aadhaar or verifying its status before applying, see our guide on how to check Aadhaar card status online, and candidates applying under SC/ST/OBC reservation can refer to our guide on how to apply for a caste certificate from the central government.

Important Instructions & Common Mistakes to Avoid

• Apply well before the last date – the portal often sees heavy traffic in the final 24-48 hours, which can cause delays or payment failures.
• Double-check your discipline, category, and educational percentage before final submission, since incorrect entries can lead to rejection at the document-verification stage.
• Diploma Engineer applicants should note that holding a higher qualification (BE/B.Tech, MBA, CA, CS, MCA, PhD) makes them ineligible for that post – do not apply if this applies to you.
• Use a clear, correctly-sized scanned photograph (captured April 2026 or later) and signature in black ink; non-compliant uploads are a common reason for rejection at the scrutiny stage.
• Law Officer and Assistant Quality Control Officer applicants must be ready to produce original experience letters on official letterhead at the time of document verification – experience gained through internships or part-time work is not counted.
• Select your exam city preferences carefully; no change in test-centre preference is allowed once submitted.
• Only one application is permitted per candidate; carrying electronic devices or using unfair means in the exam can lead to disqualification and debarment from future IOCL examinations.

What Happens After You Submit the Application?

After the closing date, IOCL will process applications and issue admit cards for the Computer Based Test through the online portal around 15 September 2026 – candidates should keep checking their registered email and the IOCL website closer to the CBT date. Candidates who qualify the CBT with the required sectional and composite percentage will be shortlisted, domain-wise and in descending order of marks, for Group Discussion, Group Task, and Personal Interview. Only after eligibility documents are verified in original at this stage does a candidate proceed further. The final result and offer of appointment are based on the composite weighted score across all three stages, subject to meeting the Pre-Employment Medical Examination (PEME) fitness guidelines.

Frequently Asked Questions (FAQs)

1. What is the last date to apply for IOCL Recruitment 2026?
The online application closes on 3 September 2026 at 5:00 PM (1700 hrs).

2. How many vacancies are there in IOCL Recruitment 2026?
A total of 470 vacancies have been notified across Graduate Engineer, Officer (Marketing), Law Officer, Assistant Quality Control Officer, and Diploma Engineer posts.

3. What is the age limit for IOCL Recruitment 2026?
26 years for Graduate Engineer/Diploma Engineer, 28 years for Officer (Marketing), and 30 years for Law Officer/Assistant Quality Control Officer, as on 1 July 2026, with standard category-wise relaxation.

4. What is the minimum educational qualification required?
It depends on the post – a B.Tech/BE degree for Graduate Engineer, an MBA (Marketing) for Officer (Marketing), a law degree for Law Officer, a Master’s in Chemistry for Assistant Quality Control Officer, and a 3-year diploma for Diploma Engineer, each with a minimum qualifying percentage.

5. What is the application fee for IOCL Recruitment 2026?
₹1,000 + GST for General/EWS/OBC-NCL candidates. SC, ST, and PwBD candidates are exempted from paying the fee.

6. Is there a written exam, or is selection only through interview?
Selection involves a Computer Based Test (85% weightage), followed by Group Discussion & Group Task (5%) and a Personal Interview (10%) for candidates who are shortlisted. It is not an interview-only recruitment.

7. What is the salary of a Graduate Engineer at IOCL?
Grade A posts carry an initial basic pay of ₹50,000 in the ₹50,000–₹1,60,000 pay scale, with an approximate annual CTC of ₹18.4 lakh including allowances.

8. Where do I apply for IOCL Recruitment 2026?
Applications must be submitted online only, through the official portal linked from the “Latest Job Opening” section of iocl.com. No offline or postal applications are accepted.

Official Links

• Official Notification PDF (Advt No. IOCL/CO-HR/RECTT/2026/01)
• Detailed Vacancy Break-up PDF
• Apply Online (Official Application Portal)
• IOCL Official Website

For more central government and PSU job openings like this one, check our Latest Jobs section, including current openings such as UPSC EPFO APFC Recruitment 2026, and related PSU recruitments like IOCL Marketing Division NR Apprentice Recruitment 2026, IOCL Gujarat Refinery Apprentice Recruitment, and ONGC Apprentice Recruitment.

Disclaimer

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