Indian Oil Corporation Limited (IOCL), Bongaigaon Refinery has opened a new apprentice intake under Advertisement No. BGR/Appr/2026/04, dated 28 September 2026. The notice offers 58 tentative seats across Chemical, Boiler and Instrumentation disciplines for eligible B.Sc. and Diploma candidates.
Applications require two compulsory actions: first apply to the correct Bongaigaon Refinery opportunity through NAPS or NATS, then submit the additional details through IOCL's linked Microsoft Form. The complete window runs from 28 September 2026 at 10:00 AM to 18 October 2026 at 5:00 PM.
Candidate note: IOCL has specified no written test for this intake. Merit is prepared from marks in the prescribed qualification, followed by document verification and pre-engagement medical fitness.
IOCL Bongaigaon Apprentice Recruitment 2026 Overview
| Particular | Details |
|---|---|
| Organisation | Indian Oil Corporation Limited (IOCL), Bongaigaon Refinery |
| Advertisement No. | BGR/Appr/2026/04 |
| Advertisement date | 28 September 2026 |
| Total seats | 58 tentative seats |
| Disciplines | Chemical, Boiler / Mechanical and Instrumentation |
| Location | Bongaigaon Refinery, Assam |
| Application mode | Online — NAPS/NATS plus mandatory Microsoft Form |
| Application opens | 28 September 2026, 10:00 AM |
| Last date | 18 October 2026, 5:00 PM |
| Eligibility cut-off | 30 September 2026 |
| Age | 18–24 years for General/EWS on the cut-off date |
| Selection | Qualification marks merit → document verification → medical fitness |
| Written test | No |
| Stipend | As prescribed under the Apprentices Act/Rules and IOCL guidelines |
| Application fee | Not specified in the advertisement |
Vacancy and Qualification Details
| Code | Trade / discipline | Qualification | Training | Seats |
|---|---|---|---|---|
| 101 | Trade Apprentice – Attendant Operator (Chemical Plant), Chemical | 3-year B.Sc. (Maths, Physics, Chemistry or Industrial Chemistry) | 12 months | 36 |
| 103 | Trade Apprentice (Boiler), Mechanical | 3-year B.Sc. (Maths, Physics, Chemistry or Industrial Chemistry) | 24 months | 14 |
| 107 | Technician Apprentice – Instrumentation | 3-year Diploma in Instrumentation Engineering / Instrumentation & Electronics / Instrumentation & Control / Applied Electronics and Instrumentation Engineering | 12 months | 8 |
| Total | 58 |
The 58 seats are tentative and can change at IOCL's discretion in accordance with applicable reservation directions.
Reservation shown in the notice
| Code | UR | EWS | SC | ST | OBC (NCL) | Total |
|---|---|---|---|---|---|---|
| 101 | 17 | 4 | 3 | 1 | 11 | 36 |
| 103 | 6 | 1 | 1 | 2 | 4 | 14 |
| 107 | 3 | 1 | 1 | 1 | 2 | 8 |
| Total | 26 | 6 | 5 | 4 | 17 | 58 |
The advertisement identifies Code 107 for PwBD consideration under the notified disability conditions; candidates should read the PwBD notes in the official advertisement before applying.
Academic Eligibility Rules
The prescribed B.Sc. or Diploma must be obtained through a regular full-time course from a recognised University or Institute. The minimum aggregate is:
| Category | Minimum aggregate |
|---|---|
| General / EWS / OBC-NCL | 50% |
| SC / ST / PwBD for reserved seats | 45% |
IOCL accepts a recognised lateral-entry Diploma where the candidate meets the notified aggregate requirement. Part-time, correspondence and distance-mode qualifications are not accepted for this intake.
The notice also restricts candidates holding specified higher professional qualifications such as B.E./B.Tech, MBA, CA, LLB or MCA. Candidates should compare their exact academic status with the official eligibility clauses before submitting the form.
If you need to verify aggregate marks, the Regal Naukri Percentage Calculator can help with the arithmetic. For CGPA results, use your institution's official conversion method before checking the value with the CGPA to Percentage Calculator.
Age Limit and Relaxation
The age reckoning date is 30 September 2026.
| Category | Age rule |
|---|---|
| General / EWS | 18 to 24 years |
| SC / ST | Up to 5 years relaxation in the upper age limit |
| OBC-NCL | Up to 3 years relaxation |
| PwBD | Up to 10 years relaxation, with additional notified category relaxation where applicable |
You can calculate your age on the cut-off date with the Regal Naukri Age Calculator.
Other Eligibility Conditions Worth Checking
Before applying, pay attention to these less obvious conditions in the notification:
- The required qualification must already be passed by the eligibility cut-off; candidates awaiting results are not eligible.
- A candidate can apply for only one trade or discipline in this advertisement.
- IOCL gives preference to candidates seeking apprenticeship training for the first time.
- Second-time apprenticeship may be permitted in a different trade subject to the gap and other conditions printed in the notice.
- Candidates who acquired the prescribed qualification five years or more before the cut-off are not eligible.
- For engineering graduates, diploma holders or vocational certificate holders, one year or more of job experience after obtaining the qualification can make the candidate ineligible under the notified rule.
Important Dates
| Event | Date |
|---|---|
| Advertisement date | 28 September 2026 |
| Online application / portal window opens | 28 September 2026, 10:00 AM |
| Eligibility reckoning date | 30 September 2026 |
| Last date for NAPS/NATS application and Microsoft Form | 18 October 2026, 5:00 PM |
| Tentative publication of DV shortlist | 26 October 2026 |
| Tentative document verification | 4–6 November 2026 |
How to Apply — Both Steps Are Mandatory
The application is not complete if you submit only the apprenticeship portal form or only the Microsoft Form.
Step 1 — Apply on the correct apprenticeship portal
For Codes 101 and 103:
- Register or log in through the Apprenticeship India / NAPS Portal.
- Search the apprenticeship opportunities for Bongaigaon Refinery.
- Use NAPS Establishment ID E07191800001 to verify the establishment.
- Select the applicable opportunity and submit the portal application.
For Code 107:
- Register or log in through the NATS Portal.
- Find the Bongaigaon Refinery apprenticeship opportunity on the dashboard.
- Use NATS Establishment ID EASCHC000001 to verify the establishment.
- Submit the application for the Instrumentation Technician Apprentice opportunity.
Step 2 — Submit IOCL's additional Microsoft Form
After completing the correct NAPS/NATS application, open the Bongaigaon Refinery Microsoft Form linked by IOCL and submit the required details.
Use the same email ID and mobile number as your apprenticeship portal profile. IOCL states that incomplete, incorrect or mismatched information between the two steps can cause rejection.
Selection Process
There is no written examination. IOCL will prepare selection merit from the percentage of marks obtained in the prescribed qualification.
For a tie in qualification percentage, the older candidate by date of birth receives preference. If the date of birth is also the same, the higher Matriculation percentage is considered.
Candidates shortlisted against the available seats are called for document verification. Final engagement is subject to the required documents being in order and the candidate meeting the pre-engagement medical fitness standards.
Documents to Keep Ready
| Document | Why it is needed |
|---|---|
| Class 10 certificate | Date-of-birth proof |
| Class 12 marksheet, if applicable | Academic record |
| Graduation / Diploma marksheets | Qualification and aggregate verification |
| Graduation / Diploma certificate | Proof of prescribed qualification |
| CGPA / grade conversion certificate | Required where percentage is not directly printed |
| Category / EWS / PwBD documents | Reservation or relaxation claim, where applicable |
| NAPS / NATS registration printout | Portal registration and application proof |
| Prescribed apprenticeship affidavit | Required where applicable |
| Government photo ID | Identity verification |
Keep original documents and self-attested copies ready for verification.
Stipend and Training Period
IOCL does not print one fixed monthly rupee amount in this advertisement. Stipend is payable according to the Apprentices Act, Apprentices Rules and Corporation guidelines.
Training lasts 12 months for Codes 101 and 107, while the Boiler apprenticeship under Code 103 runs for 24 months. IOCL does not provide company accommodation or HRA to apprentices.
Important Links
| Link | Purpose |
|---|---|
| Official IOCL Bongaigaon Apprentice Advertisement | Detailed 9-page advertisement |
| IOCL Apprenticeships Page | Official recruitment hub and current links |
| Apprenticeship India / NAPS Portal | Codes 101 and 103 registration/application |
| NATS Portal | Code 107 registration/application |
| IOCL Bongaigaon Microsoft Form | Mandatory second application step |
Frequently Asked Questions
How many apprentice seats are available at IOCL Bongaigaon Refinery?
The advertisement lists 58 tentative seats: 36 for Attendant Operator (Chemical Plant), 14 for Boiler and 8 for Instrumentation Technician Apprentice.
Is there a written examination?
No. IOCL states that there will be no written test. Selection is based on marks in the prescribed qualification, followed by document verification and medical fitness.
What is the last date to apply?
Both the relevant NAPS/NATS application and IOCL's mandatory Microsoft Form must be completed by 18 October 2026 at 5:00 PM.
Can I apply for more than one trade or discipline?
No. The advertisement says candidates applying for more than one trade or discipline will not be considered.
Is the stipend amount fixed in the advertisement?
No fixed rupee amount is printed. IOCL states that the monthly stipend will follow the applicable Apprentices Act/Rules and Corporation guidelines.
Does completing the apprenticeship guarantee an IOCL job?
No. The advertisement states that completion of the apprenticeship does not create a right to regular employment with IOCL.