IOCL Guwahati Refinery Apprentice Recruitment 2026: Apply Online for 42 Posts

Indian Oil Corporation Limited (IOCL), a Fortune “Global 500” company, has released an official notification for the engagement of Apprentices at its Guwahati Refinery Unit. This recruitment drive aims to fill 42 vacancies across various trades and technician disciplines under the Apprentices Act, 1961/1973.

If you hold a B.Sc or a Diploma in Engineering and are looking for skill-building opportunities in the oil and gas sector, this is a prime opportunity. The application process is entirely online, involving registration on NAPS/NATS portals followed by a mandatory form submission.

Application Status: Open

Closing Date: February 24, 2026

Key Highlights: IOCL Apprentice 2026

Vacancy Details and Qualifications

IOCL is hiring for specific codes corresponding to different trades. Below is the breakdown of seats and the required educational qualifications for each.

1. Trade Apprentice (B.Sc Holders)

• Post Code 101: Attendant Operator (Chemical Plant)
  • Vacancies: 16 (UR: 8, EWS: 1, SC: 1, ST: 2, OBC: 4)
  • Qualification: 3 Years B.Sc. (Physics, Mathematics, Chemistry/Industrial Chemistry) .
  • Training Period: 12 Months.
• Post Code 103: Boiler (Mechanical)
  • Vacancies: 8 (UR: 3, EWS: 1, SC: 1, ST: 1, OBC: 2)
  • Qualification: 3 Years B.Sc. (Physics, Mathematics, Chemistry/Industrial Chemistry) .
  • Training Period: 24 Months.

2. Technician Apprentice (Diploma Holders)

• Post Code 104: Chemical
  • Vacancies: 14 (UR: 6, EWS: 1, SC: 1, ST: 2, OBC: 4)
  • Qualification: 3 Years Diploma in Chemical Engineering / Petrochemical Engineering / Chemical Technology / Refinery and Petrochemical Engineering.
  • Training Period: 12 Months.
• Post Code 107: Instrumentation
  • Vacancies: 4 (UR: 2, SC: 1, OBC: 1)
  • Qualification: 3 Years Diploma in Instrumentation Engineering / Instrumentation & Electronics / Instrumentation & Control Engineering / Applied Electronics and Instrumentation Engineering.
  • Training Period: 12 Months.

Note: Persons with Benchmark Disability (PwBD) candidates are eligible to apply only against Code 107.

Eligibility Criteria

Before applying, candidates must ensure they meet the specific age and qualification requirements as of the cutoff date.

Age Limit

• Cutoff Date: The age will be calculated as of 31-01-2026.
• Range: Minimum 18 years and Maximum 24 years for General/EWS candidates.
• Relaxation:
  • SC/ST: 5 Years.
  • OBC (NCL): 3 Years.
  • PwBD: 10 Years (up to 15 years for SC/ST PwBD and 13 years for OBC PwBD).

Educational Qualification Rules

• Full-Time Course: Qualifications must be from a recognized University/Institute as a regular full-time course.
• Minimum Marks: 50% aggregate marks for General/OBC/EWS and 45% for SC/ST/PwBD candidates.
• Year of Passing: Candidates who have passed their qualifying exam more than 5 years ago (as of 31-01-2026) are not eligible.
• Experience: Candidates with 1 year or more of job experience after attaining qualifications are not eligible.

Selection Process

IOCL has streamlined the selection process for the 2026 engagement cycle:

1. No Written Test: Selection is purely based on merit.
2. Merit List: The list will be drawn based on the percentage of marks obtained in the prescribed qualification (all semesters/years averaged).
3. Tie-Breaker: In case of a tie in marks, the older candidate (senior by age) gets preference.
4. Document Verification: Shortlisted candidates will be called for document verification at Guwahati.
5. Medical Fitness: Final selection is subject to meeting the pre-engagement medical fitness standards.

Important Dates

How to Apply: Step-by-Step Guide

The application process is a two-step online procedure. Failure to complete both steps will result in rejection.

Step 1: Registration on NAPS/NATS Portal

• For Trade Apprentice (Codes 101 & 103): Register on the NAPS portal (apprenticeshipindia.gov.in). Search for the establishment “Guwahati Refinery” (ID: E08191800001) and apply for the trade.
• For Technician Apprentice (Codes 104 & 107): Register on the NATS portal (nats.education.gov.in). Apply to the advertisement by “Guwahati Refinery” (ID: EASKMC000002) on your dashboard.

Step 2: Fill the Microsoft Form

After applying on the respective portal, candidates MUST fill out the Microsoft Form available on the IOCL website.

1. Visit www.iocl.com > “What’s New” > “Engagement of Apprentices under Guwahati Refinery Unit”.
2. Click on the link to submit additional information via the Microsoft Form.
3. Ensure your details (Name, Registration No., Marks) match exactly with your NAPS/NATS profile.

Important: Keep your email and mobile number active for at least one year as all communication will be sent there.

FAQs

What is the total number of vacancies in IOCL Guwahati Refinery Apprentice 2026?
There are 42 total vacancies across Trade Apprentice and Technician Apprentice posts.

Who can apply for IOCL Apprentice 2026?
Candidates with a full-time B.Sc (Physics, Chemistry, Mathematics/Industrial Chemistry) or a full-time Diploma in relevant engineering disciplines can apply if they meet age and eligibility criteria.

What is the last date to apply for IOCL Apprentice 2026?
The last date to submit the online application is 24 February 2026 up to 5:00 PM.

What is the starting date of online application?
The online application process starts on 11 February 2026 from 10:00 AM.

Is there any written exam for IOCL Apprentice selection?
No, there is no written test. Selection is purely merit-based on academic marks.

How is the merit list prepared?
The merit list is prepared based on the percentage of marks obtained in the prescribed qualification by averaging all semesters/years.

What happens in case of a tie in marks?
If two candidates have the same marks, the older candidate is given preference.

What is the age limit for IOCL Apprentice 2026?
The minimum age is 18 years and the maximum age is 24 years as on 31 January 2026 for General/EWS candidates.

Is there any age relaxation for reserved categories?
Yes, SC/ST candidates get 5 years relaxation, OBC (NCL) get 3 years, and PwBD candidates get up to 10 years with additional relaxation for SC/ST and OBC PwBD.

What is the minimum educational percentage required?
General/OBC/EWS candidates must have at least 50% aggregate marks, while SC/ST/PwBD candidates need a minimum of 45%.

Are candidates with job experience eligible to apply?
No, candidates with one year or more of job experience after acquiring the qualification are not eligible.

Is distance or part-time qualification accepted?
No, only regular full-time courses from recognized institutions are accepted.

Is there any limit on the year of passing?
Yes, candidates who passed their qualifying exam more than five years ago as on 31 January 2026 are not eligible.

Which posts are available for B.Sc holders?
B.Sc holders can apply for Attendant Operator (Chemical Plant) and Boiler (Mechanical) Trade Apprentice posts.

Which posts are available for Diploma holders?
Diploma holders can apply for Technician Apprentice posts in Chemical and Instrumentation disciplines.

What is the training duration for IOCL Apprentices?
The training period is 12 months for most posts, while the Boiler (Mechanical) Trade Apprentice has a 24-month training period.

Are PwBD candidates eligible for all posts?
No, PwBD candidates are eligible to apply only for the Instrumentation Technician Apprentice post code 107.

How can I apply for IOCL Apprentice 2026?
You must first register and apply through the NAPS or NATS portal as applicable, and then fill the mandatory Microsoft Form available on the IOCL website.

Is it mandatory to complete both steps of the application process?
Yes, completing both portal registration and Microsoft Form submission is mandatory, otherwise the application will be rejected.

Where will the document verification take place?
Document verification will be conducted at the Guwahati Refinery.

Is medical fitness required for final selection?
Yes, final engagement is subject to meeting IOCL’s pre-engagement medical fitness standards.

When will the shortlist be published?
The tentative date for publication of the shortlist is 27 February 2026.

What are the document verification dates?
Document verification is tentatively scheduled from 5 March 2026 to 10 March 2026.

Do I need to keep my contact details active after applying?
Yes, you should keep your email ID and mobile number active for at least one year as all communication will be sent through them.

Where can I find the official notification and application link?
The official notification and Microsoft Form link are available on the IOCL website under the “What’s New” section for Guwahati Refinery Apprentice engagement.