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Engineering & TechnicalONGC AEE
Oil & Natural Gas Corporation
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आपकी प्रोफ़ाइल के अनुसार पात्रता
साइन इन आवश्यकONGC AEE के लिए अपनी पात्रता जाँचने हेतु साइन इन करें
व्यक्तिगत परिणाम और उसके स्पष्ट कारण पाने के लिए अपनी निजी छात्र प्रोफ़ाइल का उपयोग करें।
यह प्रारंभिक प्रोफ़ाइल मिलान है। आवेदन से पहले नवीनतम आधिकारिक सूचना में हर नियम की पुष्टि करें।
परीक्षा सारांश
अवलोकन
आयोजक संस्था
Oil & Natural Gas Corporation
आपको क्या मिलेगा
Assistant Executive Engineer posts at ONGC
नवीनतम सामग्री चक्र
2026
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Plan with confidence
Complete exam guide
Eligibility, pattern, syllabus, dates and official resources in one structured view.
EligibilityPending verification
Exam patternPending verification
Qualification pathway
Clear each applicable stage in order
Final selection or admission still depends on the published cutoff or merit list and any applicable counselling, document, medical, preference and vacancy rules.
Selection sequence
- 1
Computer Based Test (CBT)
RequiredCBT score is used to shortlist candidates in a 1:5 ratio for the Personal Interview. Where multiple candidates secure the minimum cut-off marks, all of them are shortlisted in relaxation of the ratio. To qualify in the CBT, General/EWS/OBC candidates must score a minimum of 45% marks and SC/ST/PwBD candidates a minimum of 40%.
- 2
Personal Interview
RequiredTo qualify in the interview, General/EWS/OBC candidates must score a minimum of 60% i.e. 9 marks out of 15, and SC/ST/PwBD candidates a minimum of 40% i.e. 6 marks out of 15.
- 3
Medical Examination
RequiredCandidates who qualify in the interview are called for medical examination in order of their relative rank in the merit list. An offer of appointment is issued only to candidates declared medically fit; mere appearance in the medical examination confers no right to appointment.
Paper and stage details
What each stage contains
Computer Based Test (CBT)
Objective type, multiple choice, 85 questions in 2 hoursQuestions
Not stated
Maximum marks
Not stated
Duration
Not stated
Personal Interview
Interview; shortlisted candidates may also be subjected to a Group Discussion, which is not of a qualifying natureQuestions
Not stated
Maximum marks
Not stated
Duration
Not stated
Medical Examination
Medical fitness examination under the ONGC Medical Examination of Employees RulesQuestions
Not stated
Maximum marks
Not stated
Duration
Not stated
SyllabusPending verification
सभी 8 विषय और 86 अध्याय शामिल हैं — कुल 950 टॉपिक में से 420 यहाँ दिखाए गए हैं।कुछ भी हटाया नहीं गया है। हर विषय में उसकी पूरी टॉपिक सूची का लिंक मौजूद है।
Petroleum Engineering
Linear Algebra
- Matrix algebra
- Systems of linear equations
- Eigen values and eigen vectors
Calculus
- Functions of single variable
- Limit
- continuity and differentiability
- Taylor series
Differential Equations
- First order equations (linear and nonlinear)
- Higher order linear differential equations with constant coefficients
- Cauchy’s and Euler’s equations
- Initial and boundary value problems
Complex Variables
- Complex number
- polar form of complex number
- triangle inequality
Probability and Statistics
- Definitions of probability and sampling theorems
- Conditional probability
- Mean
- median
Numerical Methods
- Numerical solutions of linear and non-linear algebraic equations
- Integration by trapezoidal and Simpson’s rule
- Single and multi-step methods for numerical solution of differential equations
Petroleum Exploration
- Classification and description of some common rocks with special reference to clastic and nonelastic reservoir rocks
- Origin
- migration and accumulation of Petroleum
- Petroleum exploration methods
Oil and Gas Well Drilling Technology
- Well planning
- Drilling method
- Drilling rigs Rig operating systems
- Drilling fluids function and properties
Reservoir Engineering
- Petrophysical properties of reservoir rocks
- Coring and core analysis
- Reservoir fluid properties
- Phase behaviour of hydrocarbon system
Petroleum Production Operations
- Well equipments
- Well completion techniques
- Well production problems and mitigation
- Well servicing & Workover operations
Offshore Drilling and Production Practices
- Offshore oil and gas operations & ocean environment
- Offshore fixed platforms
- Offshore mobile units
- Station keeping methods like mooring & dynamic positioning system
Petroleum Formation Evaluation
- Evaluation of petrophysical of sub-surface formations: Principles applications
- advantages and disadvantages of SP
- resistivity
- radioactive
Oil and Gas Well Testing
- Diffusivity equation
- derivation & solutions
- Radius of investigation
- Principle of superposition
Health Safety and Environment in Petroleum Industry
- Health hazards in Petroleum Industry: Toxicity
- Physiological
- Asphyxiation
- respiratory and skin effect of petroleum hydrocarbons
Enhanced Oil Recovery Techniques
- Basic principles and mechanism of EOR
- Screening of EOR process
- Concept of pattern flooding
- recovery efficiency
Application in Oil & Gas Business
- Operation & maintenance of Surface facilities (Separator, heater treater, crude stabilization, Storage tank, static equipment, compressor & pumps etc.)
- Operation of Group gathering stations
- offshore Platforms
- Artificial lift technology (Gas lift, sucker rod pumps etc)
इस विषय के 189 टॉपिक में से 61 दिखाए गए हैं।सभी 189 टॉपिक देखें →
Mechanical Engineering
Linear Algebra
- Matrix algebra
- systems of linear equations
- eigen values and eigen vectors
Calculus
- Functions of single variable
- limit
- continuity and differentiability
- mean value theorems
Differential Equations
- First order equations (linear and nonlinear)
- higher order linear differential equations with constant coefficients
- Euler-Cauchy equation
- initial and boundary value problems
Complex Variables
- Analytic functions
- Cauchy-Riemann equations
- Cauchy’s integral theorem and integral formula
- Taylor and Laurent series
Probability and Statistics
- Definitions of probability
- sampling theorems
- conditional probability
- mean
Numerical Methods
- Numerical solutions of linear and non-linear algebraic equations
- integration by trapezoidal and Simpson’s rules
- single and multi-step methods for differential equations
Engineering Mechanics
- Free-body diagrams and equilibrium
- friction and its applications including rolling friction
- belt-pulley
- brakes
Mechanics of Materials
- Stress and strain
- elastic constants
- Poisson's ratio
- Mohr’s circle for plane stress and plane strain
Theory of Machines
- Displacement
- velocity and acceleration analysis of plane mechanisms
- dynamic analysis of linkages
- cams
Vibrations
- Free and forced vibration of single degree of freedom systems
- effect of damping
- vibration isolation
- resonance
Machine Design
- Design for static and dynamic loading
- failure theories
- fatigue strength and the S-N diagram
- principles of the design of machine elements such as bolted
Fluid Mechanics
- Fluid properties
- fluid statics
- forces on submerged bodies
- stability of floating bodies
Heat Transfer
- Modes of heat transfer
- one dimensional heat conduction
- resistance concept and electrical analogy
- heat transfer through fins
Thermodynamics
- Thermodynamic systems and processes
- properties of pure substances
- behavior of ideal and real gases
- zeroth and first laws of thermodynamics
Applications
- Power Engineering: Air and gas compressors
- vapour and gas power cycles
- concepts of regeneration and reheat
- I.C. Engines: Air-standard Otto
Turbomachinery
- Impulse and reaction principles
- velocity diagrams
- Pelton-wheel
- Francis and Kaplan turbines
Engineering Materials
- Structure and properties of engineering materials
- phase diagrams
- heat treatment
- stress-strain diagrams for engineering materials
Casting, Forming and Joining Processes
- Different types of castings
- design of patterns
- moulds and cores
- solidification and cooling
Machining and Machine Tool Operations
- Mechanics of machining
- basic machine tools
- single and multi-point cutting tools
- tool geometry and materials
Metrology and Inspection
- Limits
- fits and tolerances
- linear and angular measurements
- comparators
Computer Integrated Manufacturing
- Basic concepts of CAD/CAM and their integration tools
- additive manufacturing
Production Planning and Control
- Forecasting models
- aggregate production planning
- scheduling
- materials requirement planning
Inventory Control
- Deterministic models
- safety stock inventory control systems
Operations Research
- Linear programming
- simplex method
- transportation
- assignment
Application in Oil & Gas Business
- Operation & maintenance of Surface facilities (Separator, heater treater, crude stabilization, Storage tank, static equipment, compressor & pumps etc.)
- Operation of Group gathering stations
- offshore Platforms
- Artificial lift technology (Gas lift, sucker rod pumps etc)
इस विषय के 223 टॉपिक में से 94 दिखाए गए हैं।सभी 223 टॉपिक देखें →
Chemical Engineering
Linear Algebra
- Matrix algebra
- Systems of linear equations
- Eigen values and eigenvectors
Calculus
- Functions of single variable
- Limit
- continuity and differentiability
- Taylor series
Differential Equations
- First order equations (linear and nonlinear)
- Higher order linear differential equations with constant coefficients
- Cauchy’s and Euler’s equations
- Initial and boundary value problems
Complex Variables
- Complex number
- polar form of complex number
- triangle inequality
Probability and Statistics
- Definitions of probability and sampling theorems
- Conditional probability
- Mean
- median
Numerical Methods
- Numerical solutions of linear and non-linear algebraic equations
- Integration by trapezoidal and Simpson’s rule
- Single and multi-step methods for numerical solution of differential equations
Process Calculations and Thermodynamics
- Steady and unsteady state mass and energy balances including multiphase
- multi-component
- reacting and non-reacting systems
- Use of tie components
Fluid Mechanics and Mechanical Operations
- Fluid statics
- surface tension
- Newtonian and non-Newtonian fluids
- transport properties
Heat Transfer
- Equation of energy
- steady and unsteady heat conduction
- convection and radiation
- thermal boundary layer and heat transfer coefficients
Mass Transfer
- Fick’s laws
- molecular diffusion in fluids
- mass transfer coefficients
- film
Chemical Reaction Engineering
- Theories of reaction rates
- kinetics of homogeneous reactions
- interpretation of kinetic data
- single and multiple reactions in ideal reactors
Instrumentation and Process Control
- Measurement of process variables
- sensors and transducers
- P&ID equipment symbols
- process modeling and linearization
Plant Design and Economics
- Principles of process economics and cost estimation including depreciation and total annualized cost
- cost indices
- rate of return
- payback period
Chemical Technology
- Inorganic chemical industries (sulfuric acid, phosphoric acid, chlor-alkali industry)
- fertilizers (Ammonia, Urea, SSP and TSP)
- natural products industries (Pulp and Paper, Sugar, Oil, and Fats)
- petroleum refining and petrochemicals
Application in Oil & Gas Business
- Operation & maintenance of Surface facilities (Separator, heater treater, crude stabilization, Storage tank, static equipment, compressor & pumps etc.)
- Operation of Group gathering stations
- offshore Platforms
- Artificial lift technology (Gas lift, sucker rod pumps etc)
इस विषय के 161 टॉपिक में से 57 दिखाए गए हैं।सभी 161 टॉपिक देखें →
Instrumentation Engineering
Linear Algebra
- Matrix algebra
- systems of linear equations
- consistency and rank
- Eigenvalue and Eigenvectors
Calculus
- Mean value theorems
- theorems of integral calculus
- partial derivatives
- maxima and minima
Differential Equations
- First order equation (linear and nonlinear)
- second order linear differential equations with constant coefficients
- method of variation of parameters
- Cauchy’s and Euler’s equations
Analysis of Complex Variables
- Analytic functions
- Cauchy’s integral theorem and integral formula
- Taylor’s and Laurent’s series
- residue theorem
Probability and Statistics
- Sampling theorems
- conditional probability
- mean
- median
Numerical Methods
- Matrix inversion
- solutions of non-linear algebraic equations
- iterative methods for solving differential equations
- numerical integration
Electricity and Magnetism
- Coulomb's Law
- Electric Field Intensity
- Electric Flux Density
- Gauss's Law
Electrical Circuits and Machines
- Voltage and Current Sources
- Independent
- dependent
- ideal and practical
Signals and Systems
- Periodic
- aperiodic and impulse signals
- Laplace
- Fourier and z-transforms
Control Systems
- Feedback principles
- signal flow graphs
- transient response
Analog Electronics
- Characteristics and applications of diode
- Zener diode
- BJT and MOSFET
Digital Electronics
- Combinational logic circuits
- minimization of Boolean functions
- IC families: TTL and CMOS
Measurements
- SI units
- standards (R, L, C, voltage, current and frequency)
- systematic and random errors in measurement
Sensors and Industrial Instrumentation
- Resistive-, capacitive-, inductive-, piezoelectric-, Hall effect sensors and associated signal conditioning circuits
- transducers for industrial instrumentation: displacement (linear and angular)
- velocity
Communication and Optical Instrumentation
- Amplitude- and frequency modulation and demodulation
- Shannon's sampling theorem
- pulse code modulation
इस विषय के 223 टॉपिक में से 54 दिखाए गए हैं।सभी 223 टॉपिक देखें →
Geology
Section 1
- Earth and planetary system – terrestrial planets and moons of the solar system
- size
- shape
- internal structure and composition of the earth
- concept of isostasy
- elements of seismology – body and surface waves
- propagation of body waves in the earth’s interior
- Heat flow within the earth
- Gravitational field of the Earth
- geomagnetism and paleomagnetism
- continental drift
- plate tectonics – relationship with earthquakes
- volcanism and mountain building
- continental and oceanic crust – composition
- structure and thickness
- Weathering and soil formation
- landforms created by river
- wind
- glacier
- ocean and volcanoes
- Basic structural geology - stress
- strain and material response
- brittle and ductile deformation
- nomenclature and classification of folds and faults
- Crystallography – basic crystal symmetry and concept of point groups
- Mineralogy – silicate crystal structure and determinative mineralogy of common rock forming minerals
- Petrology of common igneous
- sedimentary and metamorphic rocks
- Geological time scale
- Geochronology and absolute time
- Stratigraphic principles
- major stratigraphic divisions of India
- Mineral
- coal and petroleum resources of India
- Introduction to remote sensing
- Engineering properties of rocks and soils
- Elements of hydrogeology
- Principles and applications of gravity
- magnetic
- electrical
- electromagnetic
- seismic and radiometric methods of prospecting for oil
- mineral and ground water
- introductory well logging
Geomorphology
- Geomorphic processes and agents
- development and evolution of landforms in continental and oceanic settings
- tectonic geomorphology
Structural Geology
- Forces and mechanism of rock deformation
- primary and secondary structures
- geometry and genesis of planar and linear structures (bedding, cleavage, schistosity, lineation)
- folds
- faults
- joints and unconformities
- Stereographic projection
- shear zones
- thrusts and superposed folding
- basement-cover relationship
- Interpretation of geological maps
Crystallography and Mineralogy
- Elements of crystal symmetry
- form and twinning
- crystallographic projection
- crystal chemistry
- classification of minerals
- physical and optical properties of rock- forming minerals
Geochemistry
- Cosmic abundance of elements
- meteorites
- geochemical evolution of the earth
- geochemical cycles
- distribution of major
- minor and trace elements in crust and mantle
- elements of high temperature and low temperature geochemical thermodynamics
- isotopic evolution of the crust and the mantle
- mantle reservoirs
- geochemistry of water and water-rock interaction
Igneous Petrology
- Classification
- forms
- textures and genesis of common igneous rocks
- magmatic differentiation
- binary and ternary phase diagrams
- major and trace elements as monitors of partial melting and magma evolutionary processes
- Mantle plumes
- hotspots and large igneous provinces
Sedimentology
- Texture
- structure and sedimentary processes
- petrology of common sedimentary rocks
- Sedimentary facies and environments
- cyclicities in sedimentary succession
- provencance and basin analysis
- Important sedimentary basins of India
Metamorphic Petrology
- Structures and textures of metamorphic rocks
- Physico-chemical conditions of metamorphism and concept of metamorphic facies
- grade and baric types
- chemographic projections
- metamorphism of pelitic
- mafic and impure carbonate rocks
- role of bulk composition including fluids in metamorphism
- thermobarometry and metamorphic P-T-t paths, and their tectonic significance
Paleobiology
- Diversity of life through time
- mass extinctions- causes and effects
- taphonomy - processes of fossilization
- Taxonomy
- Morphology and functional morphology of invertebrates (bivalves, brachiopods, gastropods, echinoids, ammonites)
- microfossils (foraminifera, ostracoda, conodonts, bryozoa)
- Vertebrate paleonology (Equus, Probicidea, Human)
- Paleobotany (plant, spores, pollens)
- Basic concepts of ecology/paleoecology
- classification - ecological and taxonomic schemes (diversity and richness)
- Fossils and paleoenvironments
Stratigraphy
- Principles of stratigraphy and concepts of correlation
- Lithostratigraphy
- biostratigraphy and chronostratigraphy
- Principles of sequence stratigraphy and applications
- Stratigraphy of peninsular and extra-peninsular India
- Boundary problems in Indian stratigraphy
Resource Geology
- Ore-mineralogy
- ore forming processes vis-à-vis ore-rock association (magmatic, hydrothermal, sedimentary, supergene and metamorphogenic ores)
- fluid inclusions as ore genetic tools
- Coal and petroleum geology
- marine mineral resources
- Prospecting and exploration of economic mineral deposits - sampling
- ore reserve estimation
- geostatistics
- mining methods
- Ore dressing and mineral economics
- Distribution of mineral
- fossil and nuclear fuel deposits in India
Global Tectonics
- Plate motions
- driving mechanisms
- plate boundaries
- supercontinent cycles
Applied Geology
- Physico-mechanical properties of rocks and soils
- rock index tests
- Rock failure criteria (Mohr-Coulomb, Griffith and Hoek-Brown criteria)
- shear strength of rock discontinuities
- rock mass classifications (RMR and Q Systems)
- in-situ stresses
- rocks as construction materials
- geological factors in the construction of engineering structures including dams
- tunnels and excavation sites
- Analysis of slope stability
- Natural hazards (landslide, volcanic, seismogenic, coastal) and mitigation
- Principles of climate change
Hydrogeology
- Groundwater flow and exploration
- well hydraulics and water quality
Basic Principles of Remote Sensing
- energy sources and radiation principles
- atmospheric absorption
- interaction of energy with earth’s surface
- aerial-photo interpretation
- multispectral remote sensing in visible
- infrared
- thermal IR and microwave regions
- digital processing of satellite images
- GIS – basic concepts
- raster and vector mode operations
इस विषय के सभी 154 टॉपिक दिखाए गए हैं।कम टॉपिक दिखाएँ
General Awareness
आधिकारिक पाठ्यक्रम के मानकीकरण तक टॉपिक प्रतीक्षित हैं।
Aptitude Test
आधिकारिक पाठ्यक्रम के मानकीकरण तक टॉपिक प्रतीक्षित हैं।
English Language
आधिकारिक पाठ्यक्रम के मानकीकरण तक टॉपिक प्रतीक्षित हैं।
Important datesPending verification
2026 cycle
Next confirmed event
Cbt Date: 2026-09-06
What happens next
Confirmed upcoming schedule
Cbt Date
Upcoming2026-09-06
Full published timeline3 completed · 0 awaiting dates⌄
Registration Closes
Completed2026-07-31
Registration Starts
Completed2026-07-17
Notification Published
Completed2026-07-16
Job profile & salaryPending verification
Level
E1
Basic Pay Scale
Rs 60,000 - 1,80,000 per month
Indicative CTC
Approx. Rs 26 lacs CTC, as stated in the advertisement
Posting
Selected candidates are liable to be posted anywhere in India (Asset/Basin/Institute/Plant/HQ etc) or abroad.
Post Allocation
Allocation of ONGC's designated post to a selected candidate is as per the decision of Management, subject to availability of vacancy, and ONGC's decision is final and binding.
Employer
ONGC describes itself in this advertisement as India's Maharatna energy leader contributing over 73% of the nation's oil and 57% of gas production, with a presence in 18 countries and a community of around 22,600 professionals.
CutoffsNot loaded
Previous-year papersPending verification
Books & study sourcesNot loaded
Official & trusted free resourcesPending verification
How to applyPending verification
- 1Visit the ONGC website to register the application online. The registration site remained open from 17/07/2026 to 31/07/2026.
- 2Apply for only one academic/engineering stream, chosen on the basis of your qualification. Where multiple applications are received, the latest is final and older ones are rejected.
- 3Keep a mobile number and e-mail ID ready - the OTP for completing registration is sent to them - and keep them active for at least one year from the date of registration.
- 4Pay the registration fee online.
- 5No changes are allowed once the online application has been submitted.
FAQsPending verification
Does ONGC still recruit Assistant Executive Engineers through GATE?
Not in the current cycle. Advt. No. 2/2026 (R&P) is titled 'Recruitment of Geologists and Engineers at E1 level through Computer Based Test (CBT)' and selection runs on ONGC's own CBT, a Personal Interview and a Medical Examination. ONGC did use GATE scores for this recruitment up to the GATE-2023 cycle (Advt. No. 1/2024), and moved to its own CBT from Advt. No. 1/2025 onward.
How many questions are in the ONGC CBT and how long is it?
85 multiple choice questions in 2 hours: 40 on the concerned domain, 10 General Awareness, 25 Aptitude and 10 English Language. There is no negative marking.
What score do I need to qualify?
In the CBT, General, EWS and OBC candidates need a minimum of 45% marks and SC/ST/PwBD candidates a minimum of 40%. In the interview, General/EWS/OBC candidates need 60% (9 of 15 marks) and SC/ST/PwBD candidates 40% (6 of 15 marks). Both must be cleared separately to be empanelled.
How much does the CBT score count in the final result?
The CBT carries 85 marks and the interview 15, out of 100.
Which streams are being recruited in 2026 and how many posts?
Five streams with 52 posts in total: Mechanical Engineering 27, Chemical Engineering 10, Petroleum Engineering 9, Geology 4 and Instrumentation Engineering 2.
Can I apply for more than one stream?
No. The advertisement allows an application for only one academic/engineering stream. If several applications are submitted, the latest is taken as final and the earlier ones are rejected.
Final eligibility and dates are always subject to the latest official notification. Content marked “Pending verification” is not presented as verified advice.