OIL Recruitment 2026 — Mechanical Supervisor, Instrumentation Technician & Diesel Mechanic, 3 Posts, Walk-in 26 Aug (Assam)

OIL Recruitment 2026 is out — Oil India Limited (OIL), a Maharatna Central PSU under the Ministry of Petroleum & Natural Gas, has released Advertisement No. HRAQ/CONT-WP-B/26-301 announcing 3 government job vacancies on a contractual basis: Contractual Mechanical Supervisor, Contractual Instrumentation Technician, and Contractual Assistant Diesel Mechanic. Candidates holding Class 10th with a Diploma in Mechanical Engineering or a Trade Certificate in Instrument Mechanic/Diesel Mechanic, along with relevant work experience, are eligible to attend the walk-in interview for OIL Recruitment 2026 in Assam. Selected candidates will support OIL's field operations across mechanical, instrumentation, and diesel mechanic functions. The selection process for OIL Recruitment 2026 consists of a Walk-in for Personal Assessment, Document Verification, and preparation of a Merit List. The salary is performance-linked, with Mechanical Supervisor earning ₹24,960 per month fixed plus ₹960 per day variable, and Instrumentation Technician and Assistant Diesel Mechanic each earning ₹21,450 per month fixed plus ₹825 per day variable — a practical opportunity for ITI/Diploma-qualified technical professionals in India's oil and gas sector. The OIL Recruitment 2026 walk-in interview is scheduled for 26 August 2026. No application fee is required for any category. Candidates must carry all original documents along with self-attested photocopies and should read the complete official notification PDF before attending, since qualification and experience requirements differ across all three posts.

OIL Recruitment 2026 covers three posts, each with its own qualification requirement. Contractual Mechanical Supervisor: Class 10th from a Government Recognised Education Board, plus a 3-year Diploma in Mechanical Engineering from a Government Recognised Institute, with a minimum of 2 years post-qualification relevant work experience. Contractual Instrumentation Technician: Class 10th from a Government Recognised Education Board, plus a Trade Certificate in Instrument Mechanic trade from a Government Recognised Institute, with a minimum of 1 year post-qualification relevant work experience. Contractual Assistant Diesel Mechanic: Class 10th from a Government Recognised Education Board, plus a Trade Certificate in Diesel Mechanic Trade from a Government Recognised Institute, with a minimum of 1 year post-qualification relevant work experience.

• Minimum age: 18 years; Maximum age: 45 years, for all posts

• Mechanical Supervisor: Class 10th + 3-year Diploma in Mechanical Engineering + 2 years relevant experience
• Instrumentation Technician: Class 10th + Trade Certificate in Instrument Mechanic + 1 year relevant experience
• Assistant Diesel Mechanic: Class 10th + Trade Certificate in Diesel Mechanic + 1 year relevant experience
• Age: 18 to 45 years, for all posts
• No application fee for any category
• These are contractual positions at Oil India Limited, Assam

No application fee has been mentioned in the official OIL Recruitment 2026 notification for any category of candidates.

• Contractual Mechanical Supervisor: ₹24,960 per month fixed, plus ₹960 per day variable
• Contractual Instrumentation Technician: ₹21,450 per month fixed, plus ₹825 per day variable
• Contractual Assistant Diesel Mechanic: ₹21,450 per month fixed, plus ₹825 per day variable
• These are contractual positions at Oil India Limited, Assam

1. Read the official OIL notification PDF carefully before attending the walk-in interview, to confirm all eligibility requirements for your chosen post
2. Report at the OIL walk-in venue in Assam as per the reporting time specified in the official notification
3. Carry all original documents along with one complete set of self-attested photocopies
4. Bring valid ID proof, Class 10th certificate, Diploma/Trade Certificate as applicable, and experience certificates matching your post
5. Carry the duly filled application form if specified in the notification, along with extra passport-size photographs
6. Reach the venue well in advance of the reporting time to complete registration formalities
7. Verify your eligibility for the specific post (Mechanical Supervisor, Instrumentation Technician, or Assistant Diesel Mechanic) carefully before attending
8. Prepare for a Walk-in Personal Assessment, followed by Document Verification
9. Retain copies of all submitted documents for your own records after the interview
10. Monitor the official OIL website (oil-india.com) for any updates or corrigenda regarding this recruitment