Oil India Recruitment 2026: Apply Online for 32 Posts of Superintending Research Scientist Senior Officer

Oil India Limited Recruitment 2026 – Apply Online for Superintending Research Scientist, Senior Officer, Hindi Officer and Other Posts (Advt. No. HRAQ/REC-EX-B/2026-03)

1. Short Description

Oil India Limited, a Maharatna Public Sector Undertaking, has invited online applications from Indian Nationals for posts in Grade A, Grade B and Grade C.

The advertisement number is HRAQ/REC-EX-B/2026-03, dated 15/10/2026. Vacancies are available for Superintending Research Scientist, Senior Officer (Mechanical), Senior Officer (Petroleum), Senior Accounts Officer / Senior Internal Auditor, Hindi Officer (Official Language) and Confidential Secretary.

Eligible candidates can apply online before the last date, which is 14/11/2026 (11:00 hours).

2. Recruitment Overview

Details	Information
Organisation Name	Oil India Limited (OIL)
Advertisement No.	HRAQ/REC-EX-B/2026-03
Advertisement Date	15/10/2026
Recruitment Type	Online Application (Grade A / B / C Posts)
Total Posts	32 (provisional, may vary as per company requirement)
Online Application Starts	16:00 hours on 15/10/2026 (as per server time)
Last Date to Apply	11:00 hours on 14/11/2026 (as per server time)
Cut-Off Date (Age, Experience, Qualification)	14/11/2026
Computer Based Test (CBT) Date	28/12/2026 (Tentative)
Official Website	www.oil-india.com

Post-wise vacancy details:

Post Name (Post Code)	Grade	Pay Scale	No. of Posts	Category-wise Vacancies
Superintending Research Scientist (CH-01)	C	₹80,000 - ₹2,20,000	05	UR: 03, OBC(NCL): 01, SC: 01
Senior Officer (Mechanical) (ME-02)	B	₹60,000 - ₹1,80,000	14	UR: 07, OBC(NCL): 03, SC: 02, ST: 01, EWS: 01
Senior Officer (Petroleum) (PE-03)	B	₹60,000 - ₹1,80,000	04	UR: 03, OBC(NCL): 01
Senior Accounts Officer / Senior Internal Auditor (AC-04)	B	₹60,000 - ₹1,80,000	06	UR: 04, OBC(NCL): 01, SC: 01
Hindi Officer (Official Language) (HO-05)	A	₹50,000 - ₹1,60,000	02	UR: 01, OBC(NCL): 01
Confidential Secretary (CS-06)	A	₹50,000 - ₹1,60,000	01	PwBD-01 (Backlog)

Out of the notified vacancies, one (01) vacancy is reserved for PwBD candidates in Grade B.

3. Company Name and Job Location

Company Name: Oil India Limited (OIL), a Maharatna Public Sector Undertaking.

Job Location: The vacancies are primarily for postings at Field Headquarters, Duliajan, Assam. However, the company can post selected candidates at any of its operational areas or offices as per organisational requirements. The services of selected candidates are also transferable.

4. Qualification Eligibility

Post Name	Minimum Essential Qualification and Experience
Superintending Research Scientist (CH-01)	Ph.D. in Chemistry with M.Sc. in Chemistry (minimum 2 years duration, 60% marks) OR Ph.D. in Geology with Master's Degree in Geology / Applied Geology (minimum 2 years, 60% marks) OR Ph.D. in Chemical Engineering with Master's Degree in Chemical Engineering (minimum 2 years, 60% marks) OR Ph.D. in Petroleum Engineering with Master's Degree in Petroleum Engineering (minimum 2 years, 60% marks). AND minimum 04 years of post qualification relevant work experience.
Senior Officer (Mechanical) (ME-02)	Bachelor's Degree in Mechanical Engineering of minimum 04 years duration with minimum 65% marks (excluding Automation / Automobile / Industrial / Power / Manufacturing / Production / Mechatronics / Mining / Marine / Robotics Engineering etc.)
Senior Officer (Petroleum) (PE-03)	Master's degree in Petroleum Engineering / Technology of minimum 02 years duration with minimum 60% marks, and having Engineering at Graduation level.
Senior Accounts Officer / Senior Internal Auditor (AC-04)	Associate Member of ICAI / ICMAI. Candidates without Membership certificate of ICAI / ICMAI are not eligible.
Hindi Officer (Official Language) (HO-05)	Post Graduate Degree in Hindi AND minimum 03 years of post qualification relevant work experience (official language implementation / promotion, translation etc.).
Confidential Secretary (CS-06)	Graduate with 01/02 years Diploma in Secretarial Practice OR Modern Office Management / Secretarial Practice OR Executive Assistant Diploma OR equivalent, with knowledge of computer application. AND minimum 02 years post qualification experience in secretarial functions. Proficiency in shorthand and transcription is required.

Important points on qualification:

• Bachelor's degree in Engineering must be of minimum 4 years duration, Postgraduate / Master's degree / Diploma courses must be of minimum 2 years duration, and all other graduate courses must be of minimum 3 years duration.
• All qualifications must be from Universities / Institutions recognized by the appropriate statutory authorities in India.
• Only experience gained after obtaining the minimum essential educational qualification will be counted.
• Candidates working in Government / Public Sector Undertakings must have minimum two years' experience in the next lower pay scale or next lower equivalent pay scale.
• Candidates working in the private sector must be from a company with a minimum annual turnover of Rs. 500 Crores, supported by valid documentary proof.

5. Age Limit

Upper age limit is counted as on 14/11/2026. The limits below already include category-based relaxations.

Post Name	Upper Age Limit (Years)
Superintending Research Scientist (CH-01)	UR: 37, OBC(NCL): 40, SC: 42
Senior Officer (Mechanical) (ME-02)	UR: 27, OBC(NCL): 30, SC: 32, ST: 32, EWS: 27
Senior Officer (Petroleum) (PE-03)	UR: 29, OBC(NCL): 32
Senior Accounts Officer / Senior Internal Auditor (AC-04)	UR: 29, OBC(NCL): 32, SC: 34
Hindi Officer (Official Language) (HO-05)	UR: 29, OBC(NCL): 32
Confidential Secretary (CS-06)	GEN/EWS: 37, OBC(NCL): 40, SC/ST: 42

Age relaxation:

• 5 years for candidates ordinarily domiciled in the State of Jammu & Kashmir during the period 01.01.1980 to 31.12.1989 (domicile certificate required).
• 5 years for Ex-Servicemen.
• For PwBD candidates, age relaxation is as per Government directives.
• 3 years age relaxation for candidates having PhD in the relevant discipline for the posts under Table II and Table III (Grade B and Grade A posts).
• Upper age limit for eligible internal candidates of OIL is 54 years.
• After applying all relaxations, the maximum upper age limit shall in no case exceed 54 years for all candidates.
• Date of birth will be verified only through the Admit Card / Pass Certificate / Marksheet of Matriculation / 10th Standard or equivalent issued by a Central / State Board.

6. Salary and Facilities

Grade	Pay Scale	Approximate Gross Emoluments at Minimum of Scale
Grade C	₹80,000 - ₹2,20,000	Around ₹1,50,000
Grade B	₹60,000 - ₹1,80,000 (starting Basic Pay ₹60,000)	Around ₹1,20,000
Grade A	₹50,000 - ₹1,60,000	Around ₹90,000

Facilities and other benefits:

• Basic Pay and Industrial pattern of DA.
• HRA or Company leased / self-lease accommodation.
• Free medical benefits for self and dependents.
• Gratuity / PF, House Building Loan, Vehicle Loan, Group Insurance, etc. as per company rules.
• Post-Retirement Medical Benefits (PRMB) under Defined Contributory Scheme for those who superannuate from OIL after minimum 20 years of continuous service in OIL / any other CPSE / Govt. without any break.
• Provisionally selected candidates for all posts will serve a probationary period of one year and will be confirmed in writing after successful completion.
• Selected candidates in Grade B (except Post Code AC-04) will be appointed under the 'Scheme for Induction Level Engineers / Officers on Probation' and must execute a service bond for a minimum period of three years. Service bond is not required for Post Code AC-04.

7. Selection Process

For Superintending Research Scientist and Grade B posts (Table I and Table II):

• Phase-I: Computer Based Test (CBT) of 100 marks. Duration is 01 hour 30 minutes. Qualifying marks are 50 out of 100 for UR, OBC(NCL) and EWS, and 40 out of 100 for SC, ST and PwBD.
• Phase-II: Personal Interview (PI) of 15 marks. No qualifying marks.
• Candidates qualifying in CBT will be called for PI in the ratio of 1:5, based on CBT marks.
• Final Score = (CBT marks obtained out of 100 x 0.85) + PI marks obtained out of 15.
• The final merit list will be prepared in descending order of the combined score.

For Hindi Officer and Confidential Secretary (Table III, Grade A):

• Phase-I: Computer Based Test (CBT) of 100 marks. Duration is 01 hour 30 minutes. Qualifying marks are 50 out of 100 for UR and OBC(NCL), and 40 out of 100 for PwBD.
• Phase-II: Proficiency Test / Skill Test of 100 marks. It is qualifying only (no weightage), with 50 out of 100 as qualifying marks.
• Candidates qualifying in CBT will be shortlisted for the Proficiency Test / Skill Test in the ratio of 1:2, in order of merit.
• Skill Test for Confidential Secretary: Shorthand and Transcription.
• Skill Test for Hindi Officer: Translation, Essay Writing, Computer Application and Bilingual Typing.
• The final merit list will be prepared only on the basis of CBT marks (out of 100) for candidates who qualify in the Proficiency Test / Skill Test.

Other points:

• Appointment is subject to the candidate being declared medically fit through Pre-Employment Medical Examination (PEME).
• Compensatory time of 20 minutes per hour is allowed in CBT for candidates with benchmark disabilities, as per rules.
• If the number of applications is very large, the company may raise the minimum eligibility standards to limit the number of candidates.

8. Important Documents

Candidates should keep the following documents ready (originals along with self-attested copies, as applicable):

• Admit Card / Pass Certificate / Marksheet of Matriculation / 10th Standard or equivalent (for date of birth proof)
• Degree / Diploma certificate along with mark sheets of all academic years / semesters or consolidated mark sheet (provisional certificate with all mark sheets is accepted if degree is not available)
• Equivalence order / letter, if an equivalent qualification is claimed
• Relevant post qualification work experience certificates, if applicable
• Caste Category certificate (SC / ST / OBC) in the Government prescribed format, if applicable
• Valid OBC Non-Creamy Layer (NCL) certificate, if applicable
• Valid Income and Assets Certificate for EWS candidates, if applicable
• Valid Disability certificate for PwBD candidates (minimum 40% disability), if applicable
• Discharge Certificate / Book / Service and Release Certificate for Ex-Servicemen, if applicable
• No Objection Certificate (NOC) from employer for candidates working in PSU / Government service
• Valid photo ID proof (PAN Card / Driving Licence / Voter ID Card / Aadhaar Card / Passport etc.)
• Recent passport size colour photograph (not older than 3 months) and scanned signature

Experience proof requirements:

• Experience Letter / Service Certificate on official letterhead, showing name, designation, date of joining, date of relieving and period of employment.
• A separate document from the employer detailing roles and responsibilities performed.
• Any two of the following: last pay slip, annual increment letter, promotion / transfer order, PF statement showing employer details, offer / appointment letter showing date of joining.
• For current employment: Offer / Appointment letter, latest pay slip or similar proof, and any two of: employer ID card, annual increment letter, promotion / transfer order, PF statement. A document detailing roles and responsibilities is also required.

Online application photo and signature requirements:

• Photograph: white background, JPG / JPEG format, 100 KB to 200 KB, 3.5 cm (width) x 4.5 cm (height), 200 dpi.
• Signature: black ink on white paper, JPG / JPEG format, 80 KB to 150 KB.

9. Important Dates Links

Details	Information
For More Jobs	Visit on FresherHits
Computer Based Test (CBT) Date	28/12/2026 (Tentative). Exact date will be informed at the time of issue of Admit Cards.
Official Notification	Click Here
Online Apply	Click Here
Last Date to Apply Online	11:00 hours on 14/11/2026 (as per server time)

Official Website - Click Here

Download Syllabus - Click Here

How to apply:

• Visit the OIL online application portal and click the "Click Here" link next to "To Register".
• Step-I: Register with personal details, a valid email ID and mobile number. Verify both through OTP. User ID and password will be sent to the registered email and mobile number.
• Step-II: Log in again and fill in Personal Details, Additional Details, Communication Details, Qualification Details and Experience Details. Upload photograph and signature and submit the form.
• Pay the application fee online through SBI e-Pay Lite Payment Gateway (wherever applicable).
• Print and keep a copy of the submitted application form. The form cannot be edited once submitted.
• Do not submit more than one application for a post. If multiple applications are received, only the latest one will be considered.
• All future announcements will be published only on www.oil-india.com.

10. Application fee

Category	Application Fee
General / OBC (NCL)	₹500 + applicable taxes
SC / ST / PwBD / EWS / Ex-Servicemen	Nil

The application fee is non-refundable and will not be refunded under any circumstances. Fee payment is to be made online through SBI e-Pay Lite Payment Gateway.

Oil India Recruitment 2026