Indian Oil Corporation Limited is recruiting for various regular jobs across India. There are a total of 394 vacancies available for young and energetic people. The recruitment notification was released on 20/12/2025 for several refinery units. You can work in locations like Guwahati, Barauni, Gujarat, Haldia, Mathura, Panipat, Digboi, Bongaigaon, and Paradip. The online application starts on 20/12/2025 and the last date to apply is 09/01/2026. All eligible candidates from India are welcome to apply for these positions.
Recruitment Overview
| Recruitment Organization | Indian Oil Corporation Limited (IOCL) |
| Post Name | Junior Engineering Assistant and Others |
| Advt No. | Guwahati-GR/P/Rectt/25 and Others |
| Nature of Job | Regular |
| Mode of Exam | CBT - Computer Based Test |
| Vacancies | 394 |
| Salary | Rs. 25,000 to Rs. 1,05,000 per month |
| Applicant Eligible From | India |
| Job Location | All India (Refinery Units) |
| Category | Engineering Jobs |
Post Details
| Post Name | Posts | Age Limit |
| Junior Engineering Assistant-IV (Production) (Post Code 201) | UR-89, EWS-16, SC-26, ST-11, OBC-58 | 18 to 26 Years as on 31/12/2025 |
| Junior Engineering Assistant-IV (P&U) (Post Code 202) | UR-17, EWS-4, SC-4, ST-5, OBC-7 | |
| Junior Engineering Assistant-IV (P&U-O&M) (Post Code 203) | UR-12, EWS-2, SC-4, OBC-4 | |
| Junior Engineering Assistant-IV (Electrical) (Post Code 204) | UR-5, EWS-1, SC-2, ST-1, OBC-2 | |
| Junior Engineering Assistant-IV (Mechanical) (Post Code 205) | UR-10, EWS-1, SC-1, OBC-2 | |
| Junior Engineering Assistant-IV (Instrumentation) (Post Code 206) | UR-4, ST-1, OBC-1 | |
| Junior Quality Control Analyst (Post Code 207) | UR-14, SC-1, OBC-5 | |
| Junior Engineering Assistant-IV (Fire & Safety) (Post Code 208) | UR-24, EWS-3, SC-7, ST-2, OBC-15 |
The total number of posts is 394. For Post Code 208 (Fire & Safety) at Haldia Refinery, one vacancy is kept on hold due to court orders. Age relaxation is given as follows:
- 5 years for SC/ST candidates.
- 3 years for OBC (NCL) candidates.
- 10 to 15 years for PwBD candidates.
- Ex-Servicemen get relaxation as per Government rules.
Exam Fee
| Category | Fee Amount |
| General, EWS, and OBC (NCL) | Rs. 300 |
| SC, ST, PwBD, and ExSM | Rs. 0 (Exempted) |
Essential Qualification
- Junior Engineering Assistant-IV (Production)
- 3 years Diploma in Chemical Engineering or Petrochemical Technology.
- OR B.Sc. with Maths, Physics, Chemistry or Industrial Chemistry.
- Minimum 50% marks (45% for SC/ST).
- Junior Engineering Assistant-IV (P&U)
- 3 years Diploma in Mechanical or Electrical Engineering.
- OR B.Sc. with Maths, Physics, Chemistry or Industrial Chemistry.
- Must have a Boiler Competency Certificate or Apprenticeship in Boiler Attendant.
- Junior Engineering Assistant-IV (Electrical/Mechanical/Instrumentation)
- 3 years Diploma in the relevant Engineering branch.
- Relevant branches include Electrical, Mechanical, Instrumentation, or Electronics.
- Minimum 50% marks (45% for SC/ST/PwBD).
- Junior Quality Control Analyst
- B.Sc. with Maths, Physics, Chemistry or Industrial Chemistry.
- Minimum 50% marks (45% for SC/ST/PwBD).
- Junior Engineering Assistant-IV (Fire & Safety)
- 10th Grade and 12th Grade Pass.
- Must have finished a Sub-Officers Course from NFSC Nagpur or a recognized board.
- Must have a Valid Heavy Vehicle Driving License.
Important Note: The qualification must be from a Regular Full Time course. Higher degrees like B.E., B.Tech, MBA, or MCA are not allowed for these posts.
Selection Process
- Computer Based Test (CBT): This is the first step for all candidates.
- Skill/Proficiency/Physical Test (SPPT): Only for those who pass the CBT. This test is just to qualify.
- Document Verification: Checking all your original certificates.
- Medical Examination: You must be healthy as per company rules.
| Exam Detail | Information |
| Total Marks | 100 Marks |
| Time Duration | 120 Minutes |
| Subjects | 75 Marks (Subject), 15 Marks (Maths), 10 Marks (GK) |
| Negative Marking | No Negative Marking |
How to Apply
- Go to the official website by clicking IOCL Careers Page.
- Click on New Registration and enter your name and email.
- Login with your new Registration Number and Password sent to your email.
- Fill in all your personal and school details carefully.
- Upload your Photograph, Signature, and Thumb Impression as per the rules.
- Upload all your Certificates like 10th grade mark sheet and Diploma.
- Pay the Application Fee of Rs. 300 online if you are from General/OBC/EWS category.
- Submit the form and take a Printout for your records.
Important Dates
| Online registration start date | 20/12/2025 (10:00 AM) |
| Online registration last date | 09/01/2026 (11:55 PM) |
| Payment date of application fees | 09/01/2026 |
| Download of Call letters | 7 Days before Exam |
| Conduct of Exam date | Last Week of January 2026 |
| Result of Exam | February 2026 (Tentative) |
Important Links
| Official Website | Click Here |
| Notification | Click Here |
| Apply Online | Click Here |
FAQs
- What is the maximum age for General category candidates?
- The maximum age is 26 years as on 31/12/2025.
- Is there any negative marking in the CBT exam?
- No, there is no negative marking for wrong answers in the exam.