ONGC Geologist and Engineer Recruitment 2026: Apply for 52 E1 Level Posts

Quick Highlights

• Organization: Oil and Natural Gas Corporation Limited (ONGC)
• Advt No.: 2/2026 (R&P)
• Post Name: Geologist and Engineer, E1 Level
• Total Vacancies: 52
• Application Mode: Online only
• Last Date to Apply: 31/07/2026, 23:59 Hours

About ONGC

ONGC describes itself as India's Maharatna energy leader, contributing over 73 percent of the nation's oil and 57 percent of its gas production, with operations spread across 18 countries. The organisation says it is investing in natural gas, renewables and new technologies as part of its future plans, and currently has a workforce of around 22,600 professionals.

Important Dates

Vacancy Details: Stream-Wise Breakup

The 52 posts are spread across five Academic and Engineering streams, with reservation applied as per government norms. Here is the category-wise breakup given in the notification:

Candidates holding a Petroleum Engineering qualification are eligible for all 9 vacancies in that stream, while candidates with an Applied Petroleum Engineering qualification can be considered for 7 out of the 9 vacancies (UR-3, OBC-2, SC-1, EWS-1). One vacancy under the SC category in Mechanical Engineering has been carried forward from a previous advertisement. Reservation for Persons with Benchmarked Disabilities (PwBD) is applied as per existing government guidelines, and identified disability categories differ by stream.

Eligibility Criteria

Each stream has its own qualifying degree requirement, and a minimum of 60 percent marks is needed in all cases:

• Petroleum Engineering: Graduate Degree in Petroleum Engineering or Applied Petroleum Engineering with minimum 60 percent marks.
• Mechanical Engineering: Graduate Degree in Mechanical Engineering with minimum 60 percent marks.
• Chemical Engineering: Graduate Degree in Chemical Engineering with minimum 60 percent marks. A BE or B.Tech in Chemical Sciences and Technology is not acceptable for this stream.
• Instrumentation Engineering: Graduate Degree in Instrumentation Engineering with minimum 60 percent marks.
• Geology: Post Graduate Degree in Geology, or M.Sc./M.Tech in Petroleum Geoscience, or M.Sc./M.Tech in Petroleum Geology, or M.Tech in Geological Technology, each with minimum 60 percent marks.

Courses must be recognised by relevant statutory bodies such as AIU, UGC or AICTE, and candidates must have already acquired their qualification on or before the last date of application. No equivalent qualification is accepted in place of the ones listed above.

Age Limit

Age is calculated as on the last date of application. The limits differ for the Engineering streams and the Geology stream:

Departmental candidates of ONGC get relaxation as per their category, plus further relaxation equal to their years of service in ONGC. Ex-servicemen who are also departmental candidates get whichever relaxation is higher.

Pay Scale and Benefits

Selected candidates will be placed at the E1 level with a basic pay scale of Rs. 60,000 to Rs. 1,80,000. Along with a 3 percent annual increment, employees get allowances worth 35 percent of Basic Pay under the Cafeteria Approach, along with Dearness Allowance, HRA or Company Accommodation, Contributory Provident Fund, Conveyance Maintenance, Leave Encashment, Performance Related Pay, medical facility for self and dependents, Gratuity and other retirement benefits. ONGC states the overall compensation package works out to approximately Rs. 26 lakhs CTC.

Application Fee

The registration fee excludes convenience fee and bank commission plus GST, and must be paid online. It is non-refundable. Departmental candidates from ONGC also need to pay the fee, but it is reimbursable to them.

Selection Process

Selection is carried out in three stages:

1. Computer Based Test (CBT)
2. Personal Interview
3. Medical Fitness Examination

Only candidates who clear all three stages are issued an offer of appointment. CBT scores are used to shortlist candidates for interview in a 1:5 ratio category-wise, though all candidates meeting the cut-off in a tie situation are shortlisted even beyond this ratio. Shortlisted candidates may also go through a Group Discussion, which is not of a qualifying nature. Final merit is based on combined CBT and Interview performance, weighted as below:

To qualify, General, EWS and OBC candidates need a minimum of 45 percent in the CBT and 60 percent (9 out of 15 marks) in the Interview. SC, ST and PwBD candidates need a minimum of 40 percent in both the CBT and the Interview (6 out of 15 marks). Candidates who qualify at every stage then undergo medical examination as per ONGC's Medical Examination of Employees Rules before an offer of appointment is issued.

Exam Pattern

The CBT is an objective-type test of 2 hours duration, with no negative marking, comprising four sections:

PwBD candidates get compensatory time of 20 minutes per hour, and those with Blindness or Locomotor disability may bring a scribe on production of the prescribed medical certificate. If the CBT is held across multiple sessions, scores are normalized to adjust for any difference in difficulty level.

The test will be conducted across 19 cities, including Delhi/NCR, Mumbai, Kolkata, Chennai, Ahmedabad, Hyderabad, Bengaluru, Lucknow, Jaipur and Bhubaneswar, among others. Candidates must indicate their preferred test centre at the time of application, and no change in this preference is allowed later.

Medical Standards

ONGC has specified a few salient medical conditions for this recruitment. Complete or partial colour blindness and night blindness are not acceptable for any of the advertised streams. Myopia, including cylinder, up to -4.00 D and Hypermetropia up to +4.00 D are acceptable. Correction with contact lenses or intraocular implants is allowed provided the prescribed standards are met. Full medical rules are available on the ONGC website.

Reservation for Persons with Benchmarked Disabilities

Identified benchmarked disability categories and reserved vacancies differ by stream. For example, in Mechanical Engineering, 3 vacancies under Category C-LC and 1 vacancy under Category D/E are reserved, both carried forward from previous advertisements. In Petroleum Engineering, 2 vacancies under Category C are reserved. In Chemical Engineering, 4 vacancies are reserved under Category C. In Instrumentation Engineering, 1 vacancy under Category B-HH is reserved, and in Geology, 2 vacancies under Category B and 1 under Category C are reserved. If a suitable PwBD candidate is not available in a given category, ONGC may consider candidates from other benchmarked disability categories by interchange, and if none is available even then, the reserved vacancy is filled by a candidate without benchmarked disability.

Documents Required

• Mobile number and e-mail ID for OTP verification
• Scanned passport-size colour photograph with white background (20kb to 50kb, jpg/jpeg)
• Scanned signature (10kb to 20kb, jpg/jpeg)
• Class 10th Certificate, for verification of date of birth
• Degree Certificate of the essential qualification
• Consolidated Marksheet or transcript for all semesters or years
• Photo identity proof, such as Aadhaar Card, Passport, Driving License or Voter ID Card
• PAN Card

All documents must be uploaded in PDF format, with each file not exceeding 500 kb.

How to Apply

1. Visit the official ONGC website, www.ongcindia.com, and locate the online registration link for Advt No. 2/2026 (R&P).
2. Keep your mobile number and e-mail ID ready, since an OTP will be sent to complete the registration process.
3. Keep a scanned passport-size color photograph with white background (20kb to 50kb, jpg or jpeg) and a scanned signature (10kb to 20kb, jpg or jpeg) ready for upload.
4. Keep your Class 10th certificate, degree certificate, consolidated marksheet or transcript, photo identity proof and PAN Card ready in PDF format, each file not exceeding 500 kb.
5. Select only one Academic or Engineering Stream that matches your qualification, since applications for more than one stream are not permitted.
6. Fill in the online application form carefully, choose your preferred CBT test city, and pay the registration fee online, if applicable to your category.
7. Submit the application before 31/07/2026, 23:59 hours, and save the registration slip for future reference, since no changes are allowed after submission.

Applications will only be accepted online; no manual or paper applications are entertained. If a candidate submits more than one application, only the latest one will be considered final and older ones will be rejected.

General Rules

• Candidates can apply for only one Academic/Engineering Stream based on their qualification.
• No enquiries regarding eligibility will be entertained; candidates must satisfy themselves before applying.
• Furnishing wrong or false information will lead to disqualification at any stage, even after joining.
• Requests for change of mailing address, stream, test centre or mode of interview will not be entertained once submitted.
• Selected candidates are liable to be posted anywhere in India or abroad.
• Candidates already employed elsewhere must resign only after being declared medically fit for joining ONGC.
• All disputes are subject to Delhi jurisdiction only.
• ONGC does not seek any payment other than the registration fee, and candidates are advised not to respond to unauthorised advertisements.

Frequently Asked Questions

Q1. What is the ONGC Geologist and Engineer Recruitment 2026?

It is a recruitment drive by ONGC, released under Advt. No. 2/2026 (R&P), to fill 52 posts of Geologist and Engineer at E1 level across Petroleum Engineering, Mechanical Engineering, Chemical Engineering, Instrumentation Engineering and Geology streams through a Computer Based Test.

Q2. How many total vacancies are there in ONGC Advt No 2/2026?

There are 52 vacancies in total, distributed as 9 in Petroleum Engineering, 27 in Mechanical Engineering, 10 in Chemical Engineering, 2 in Instrumentation Engineering and 4 in Geology.

Q3. What is the last date to apply for this ONGC recruitment?

Online registration opened on 17/07/2026 and will close on 31/07/2026 at 23:59 hours. No other mode of application is accepted.

Q4. What is the age limit for ONGC Geologist and Engineer posts?

For the four Engineering streams, the maximum age for Unreserved and EWS candidates is 26 years, with relaxations up to 31 years for SC/ST candidates. For the Geology stream, the maximum age is 27 years for Unreserved and EWS, going up to 32 years for SC/ST candidates, with further relaxation for PwBD and Ex-Servicemen candidates.

Q5. What is the selection process for ONGC E1 level recruitment?

Selection happens in three stages: a Computer Based Test, a Personal Interview, and a Medical Fitness examination. The CBT carries 85 marks and the Interview carries 15 marks, and candidates must qualify in both stages separately before being considered for medical examination.

Q6. What is the application fee for ONGC Recruitment 2026?

General, OBC (NCL) and EWS candidates must pay a registration fee of Rs. 1000, plus applicable convenience fee, bank commission and GST. SC, ST and PwBD candidates are not required to pay any registration fee.

Q7. What is the pay scale for ONGC E1 level posts?

The E1 level carries a basic pay scale of Rs. 60,000 to Rs. 1,80,000, along with allowances of 35 percent of Basic Pay under the Cafeteria Approach, Dearness Allowance, HRA or Company Accommodation, Provident Fund and other benefits, taking the approximate CTC to Rs. 26 lakhs per annum.

Q8. Is there negative marking in the ONGC Computer Based Test?

No, there is no negative marking in the CBT. The test consists of 85 multiple-choice questions across the Concerned Domain, General Awareness, Aptitude and English Language sections, to be completed in 2 hours.

Source

This article is based on the official ONGC recruitment notification, Advt. No. 2/2026 (R&P), for the Recruitment of Geologists and Engineers at E1 level, published on the official ONGC website.

Disclaimer: This article is for informational purposes only, based on the official notification available at the time of writing. Candidates are advised to check the official ONGC website for the latest updates, corrigenda, and the application link before applying.