Iocl Engineer

Name Of The Post

IOCL Engineer

Last Updated

13th June 2026

Importance of the Post

This section is important because it informs candidates about the recruitment opportunity and provides the official syllabus for exam preparation. Knowing the exact topics and their weightage helps applicants tailor their study plans and increases their chances of success in the IOCL Engineer selection process.

Highlighted Information

Apply for IOCL Engineer Recruitment 2026; full syllabus available for review

Short Information

This page lists the section-wise syllabus and topic break-up for IOCL Engineer Recruitment 2026 — Syllabus (via GATE). The content is sourced from the official notification published by Indian Oil Corporation Limited. 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.

IOCL Engineer Syllabus

View full syllabus

Quick Information

Department

Recruitment notification issued by Indian Oil Corporation Limited.

Stage Level

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

Job Type

Permanent role offered for selected candidates.

Exam Mode

Examination conducted: Offline Computer Based.

Applicants Gender

Eligibility extends to All applicants.

Eligibility

Minimum Qualification

BE/BTech / PG per the post

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.