Ongc

Name Of The Post

ONGC Engineer Officer

Last Updated

6th June 2026

Importance of the Post

Knowing the official syllabus before applying helps candidates target their preparation efficiently and increases their chances of success. Reviewing the syllabus ensures you are ready for the exam content and can make informed decisions about whether to apply. This section is essential for candidates who want to align their study plan with ONGC's requirements for the Engineer / Officer posts. Importance of the Post

Highlighted Information

Apply for ONGC Engineer / Officer 2026 recruitment; full GATE-based syllabus available for review Highlighted Information

Short Information

This page lists the section-wise syllabus and topic break-up for ONGC Engineer / Officer 2026 — Syllabus (via GATE). The content is sourced from the official notification published by Oil and Natural Gas Corporation. The syllabus is authoritative for the current cycle and is intended for candidate revision and topic prioritisation. Each section below lists the topics in the order they typically appear in the official notification, with sub-topic depth aligned to the question paper's weightage. Always verify against the latest notification on the official website before finalising your preparation plan, since regulators occasionally tweak weightage or add/remove subjects between cycles. Short Information

ONGC Engineer Officer 2026 Syllabus via GATE

View full syllabus

Department

Recruitment notification issued by Oil and Natural Gas Corporation.

Stage Level

Held at the National level, applicants from this scope are eligible.

Eligibility

Minimum Qualification

BE/BTech / PG per the post

Job Type

Permanent role offered for selected candidates.

Exam Mode

Examination conducted: Offline Computer Based.

Applicants Gender

Eligibility extends to All applicants.

Important Dates

Applications open	28th August 202628th August 2026
Application closes	7th October 20267th October 2026

Important Links

Official Website

Section	Topics
General Aptitude (15 marks, common)General Aptitude (15 marks, common)	Verbal aptitude — basic English grammar, vocabulary, reading comprehension; Quantitative aptitude — data interpretation, numerical computation, mensuration, ratios; Analytical aptitude — logic, deduction, analogy; Spatial aptitude.Verbal aptitude — basic English grammar, vocabulary, reading comprehension; Quantitative aptitude — data interpretation, numerical computation, mensuration, ratios; Analytical aptitude — logic, deduction, analogy; Spatial aptitude.
Engineering Mathematics (common to most papers)Engineering Mathematics (common to most papers)	Linear algebra; Calculus; Differential equations; Complex variables; Probability & statistics; Numerical methods; Transform theory.Linear algebra; Calculus; Differential equations; Complex variables; Probability & statistics; Numerical methods; Transform theory.
Core Subject (CS / EE / ME / CE / EC / CH / IN / etc.)Core Subject (CS / EE / ME / CE / EC / CH / IN / etc.)	Branch-specific BTech-level syllabus. For CS — Digital Logic, Computer Organisation, Programming & Data Structures, Algorithms, Theory of Computation, Compiler Design, Operating Systems, Databases, Computer Networks. For ME — Mechanics, Strength of Materials, Theory of Machines, Vibrations, Thermodynamics, Fluid Mechanics, Heat Transfer, Manufacturing, Industrial Engineering. Other branches mirror their BTech curricula.Branch-specific BTech-level syllabus. For CS — Digital Logic, Computer Organisation, Programming & Data Structures, Algorithms, Theory of Computation, Compiler Design, Operating Systems, Databases, Computer Networks. For ME — Mechanics, Strength of Materials, Theory of Machines, Vibrations, Thermodynamics, Fluid Mechanics, Heat Transfer, Manufacturing, Industrial Engineering. Other branches mirror their BTech curricula.
Industry / PSU Awareness (interview & group discussion stage)Industry / PSU Awareness (interview & group discussion stage)	Indian energy / heavy industry / oil & gas / steel / power sector overview; About the recruiting PSU — vision, products, business segments, financial performance, recent CSR activities; National policies relevant to the sector; Behavioural / situational questions.Indian energy / heavy industry / oil & gas / steel / power sector overview; About the recruiting PSU — vision, products, business segments, financial performance, recent CSR activities; National policies relevant to the sector; Behavioural / situational questions.

Section

Topics

General Aptitude (15 marks, common)

Verbal aptitude — basic English grammar, vocabulary, reading comprehension; Quantitative aptitude — data interpretation, numerical computation, mensuration, ratios; Analytical aptitude — logic, deduction, analogy; Spatial aptitude.

Engineering Mathematics (common to most papers)

Linear algebra; Calculus; Differential equations; Complex variables; Probability & statistics; Numerical methods; Transform theory.

Core Subject (CS / EE / ME / CE / EC / CH / IN / etc.)

Branch-specific BTech-level syllabus. For CS — Digital Logic, Computer Organisation, Programming & Data Structures, Algorithms, Theory of Computation, Compiler Design, Operating Systems, Databases, Computer Networks. For ME — Mechanics, Strength of Materials, Theory of Machines, Vibrations, Thermodynamics, Fluid Mechanics, Heat Transfer, Manufacturing, Industrial Engineering. Other branches mirror their BTech curricula.

Industry / PSU Awareness (interview & group discussion stage)

Indian energy / heavy industry / oil & gas / steel / power sector overview; About the recruiting PSU — vision, products, business segments, financial performance, recent CSR activities; National policies relevant to the sector; Behavioural / situational questions.