I will get the Graduate Trainee Syllabus And Exam Pattern of ONGC, so that it would be easy for you to prepare hard.

Here is the syllabus


The written examination is a Computer Based Test

Exam paper consists of Multiple Choice Questions

There is no negative marking.

Part Subject No of Questions
I Concerned subject of qualifying degree 80
II General Awareness 40
III Aptitude Test 30
Total 150

Here is the syllabus
General Awareness:
Current affairs
National and international news
Important date
General knowledge
Current issue
Current Politics issue

Aptitude Test:
Logical Reasoning
Numerical ability
Reading comprehension
Verbal and Non-verbal
DI (Data Interpretation)

Optional Subjects
CSE and IT
Engineering Mathematics
Mathematical Logic
Probability
Set Theory & Algebra
Combinatorics
Graph Theory
Linear Algebra
Numerical Methods
Calculus

Computer Science & Information Technology
Digital Logic
Computer Organization & Architecture
Programming & Data Structures
Algorithms
Theory of Computation
Compiler Design
Operating System
Databases
Information Systems & Software Engineering
Computer Networks
Web Technologies

Electronics & Communication Engineering (ECE)
Engineering Mathematics
Linear Algebra
Calculus
Differential Equations
Complex Variables
Probability and Statistics
Numerical Methods
Transform Theory

Electronics & Comm. Engg.
Networks, Electronic Devices
Analog Circuits
Digital Circuits
Signal & Systems
Control Systems
Communications
Electromagnetics

Mechanical Engineering (ME)
Engineering Mathematics
Linear Algebra
Calculus
Differential Equations
Complex Variables
Probability & Statistics
Numerical Methods

Applied Mechanics & Design
Engineering Mechanics
Strengths of Materials
Theory of Machines
Vibrations
Design
Fluid Mechanics
Thermodynamics
Applications
Engineering Materials
Metal Casting
Forming, Joining
Machining and Machine Tool Operations
Metrology and Inspection
Computer Integrated Manufacturing
Production Planning and Control
Inventory Control
Operations Research

Electrical Engineering (EE)
Engineering Mathematics
Linear Algebra
Calculus
Differential Equations
Complex Variables
Probability & Statics
Numerical Methods
Transform theory

Electrical Engineering
Electric Circuits and Fields
Signals and Systems
Electrical Machines
Power Systems
Control Systems
Electrical and Electronic Measurements
Analog and Digital Electronics
Power Electronics and Drives

Civil Engineering
Engineering Mathematics
Linear Algebra
Calculus
Differential Equations
Complex Variables
Probability & Statics
Numerical Methods

Structural Engineering
Mechanics
Structural Analysis
Concrete Structure
Steel Structures

Geo Technical Engineering
Solid Mechanics
Foundation Engineering

Water Resources Engineering
Fluid Mechanics and Hydraulics
Hydrology
Irrigation

Environmental Engineering
Water Requirements
Air Pollution
Municipal Solid Wastes
Noise Pollution

Transportation Engineering
Highway Planning, Traffic Engineering