PSU Jobs exams — mock tests & complete preparation
Public Sector Undertaking recruitment — the Maharatna and Navratna companies like ISRO, DRDO, BARC, ONGC, SAIL, IOCL, GAIL, NTPC, Coal India and FCI — that hire engineers, scientists and management trainees into secure, well-paid government careers.
Employers
ISRO · DRDO · BARC · ONGC
Also here
SAIL · IOCL · GAIL · NTPC · FCI
Routes
GATE score or own written test
Roles
Scientist · Trainee · Manager
About psu jobs exams
India's Public Sector Undertakings (PSUs) are government-owned companies that run the country's core industries — space and defence research (ISRO, DRDO, BARC), oil and gas (ONGC, IOCL, GAIL), steel and mining (SAIL, Coal India), power (NTPC) and food logistics (FCI). They recruit fresh graduates and experienced professionals into roles such as Scientist/Engineer, Graduate/Executive Trainee, Management Trainee and Manager, offering pay, stability and prestige that rival or exceed the civil services for a technical career.
PSU recruitment follows two routes. Many Maharatna and Navratna firms — ONGC, GAIL, NTPC, IOCL and others — shortlist candidates through their GATE score, then an interview or group discussion. Others, including ISRO, DRDO CEPTAM, BARC OCES/DGFS, SAIL, Coal India and FCI, run their own written examinations that pair a heavy discipline/technical section with general aptitude, reasoning, English and general awareness. Either way, a strong performance on a discipline-plus-aptitude test is the deciding factor.
Because these are among the most competitive recruitments in the country — thousands of graduates chase a few dozen seats — the aptitude, reasoning and general-awareness sections are where selectable candidates pull ahead of merely qualified ones. Full-length, timed practice on the exact PSU pattern, section by section, is the most reliable way to convert a good degree into an offer letter.
PSU Jobs exams on ExamguruX
Each exam has its own hub with full-length mocks on the official pattern, topic-wise tests, and a complete guide to syllabus, eligibility, marking and cut-offs.
ISRO Scientist/Engineer
ISRO Scientist/Engineer mocks — Core Engineering (Discipline), Engineering Mathematics, Aptitude & Reasoning & more, on the official PSU pattern.
DRDO CEPTAM
DRDO CEPTAM mocks — Quantitative Aptitude, General Intelligence & Reasoning, General Awareness & more, on the official PSU pattern.
BARC OCES/DGFS
BARC OCES/DGFS mocks — Core Engineering (Discipline), Engineering Mathematics, Analytical & Numerical Aptitude & more, on the official PSU pattern.
ONGC Graduate Trainee
ONGC Graduate Trainee mocks — Discipline / Technical Knowledge, General Awareness & Current Affairs, Quantitative Aptitude & Reasoning & more, on the official PSU pattern.
SAIL Management Trainee
SAIL Management Trainee mocks — Technical / Discipline Knowledge, Quantitative Aptitude, Reasoning & English & more, on the official PSU pattern.
GAIL Executive Trainee
GAIL Executive Trainee mocks — Discipline Knowledge, General Aptitude (Quant & Reasoning), English Language & more, on the official PSU pattern.
IOCL (Indian Oil)
IOCL (Indian Oil) mocks — Technical / Discipline Knowledge, Quantitative Aptitude & Reasoning, English Language & more, on the official PSU pattern.
Coal India MT
Coal India MT mocks — General Knowledge & Current Affairs, Reasoning & Quantitative Aptitude, English Language & more, on the official PSU pattern.
FCI Manager
FCI Manager mocks — Reasoning Ability, Quantitative Aptitude, English Language & more, on the official PSU pattern.
NTPC Executive Trainee
NTPC Executive Trainee mocks — Discipline / Technical Knowledge, Executive Aptitude (Reasoning & Quant), English & Comprehension & more, on the official PSU pattern.
How to prepare for psu jobs exams
Master your engineering discipline
The technical/discipline section carries the most weight in almost every PSU test. Revise your core branch subjects to GATE depth — that single foundation serves ISRO, BARC, SAIL, ONGC and the GATE-based PSUs alike.
Don't neglect aptitude and awareness
Selectable ranks are decided in the reasoning, quantitative aptitude, English and general-awareness sections. Drill these separately so they don't drag down an otherwise strong technical score.
Know each PSU's route and pattern
Some PSUs recruit through GATE, others through their own written exam with different marking. Practise on the exact pattern of the PSU you're targeting rather than a generic one.
PSU Jobs exams — frequently asked questions
How do PSUs recruit — through GATE or their own exam?
Both. Many Maharatna and Navratna companies — ONGC, GAIL, NTPC, IOCL among them — shortlist through the GATE score followed by an interview or group discussion, while others such as ISRO, DRDO CEPTAM, BARC, SAIL, Coal India and FCI conduct their own written examinations. Our mocks cover the own-exam pattern for each, plus aptitude sections useful to GATE-route candidates.
What subjects appear in a PSU written test?
Most PSU written tests pair a heavy discipline/technical section (your engineering branch or a professional subject) with general aptitude — quantitative ability, reasoning, English and general awareness/current affairs. The exact weighting varies by employer, which is why our mocks follow each PSU's own pattern.
Which PSU exams does ExamguruX cover?
The high-demand cluster first — ISRO Scientist/Engineer, DRDO CEPTAM, BARC OCES/DGFS, ONGC Graduate Trainee, SAIL Management Trainee, GAIL Executive Trainee, IOCL, Coal India Management Trainee, FCI Manager and NTPC Executive Trainee — each with full-length mocks and subject-wise topic tests, and more are being added.
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