PSU Technical Exams — Cheatsheets

Recruitment route comparison

Property	GATE-route	Standalone-exam route

|---|---|---|

Technical exam	GATE score used directly	PSU-specific written exam
Example PSUs	NTPC, GAIL, BHEL (varies by year)	ONGC, BEL (varies by year)
Preparation focus	Strong GATE preparation	GATE-level technical + PSU-specific aptitude/pattern review
Standardization	High (GATE is uniform)	Low (varies PSU to PSU)

(needs verification — recheck against current source: recruitment route can change year to year per PSU.)

Stage	Assesses	Universal?

|---|---|---|

Technical + aptitude written exam / GATE score	Core discipline knowledge, quantitative/logical reasoning	Yes (one or the other)
Group discussion	Communication, collaboration, leadership	No — PSU/cycle dependent
Personal/HR interview	Applied judgment, depth of understanding, organizational fit	Yes

Discipline	Especially relevant PSUs	Core technical emphasis

|---|---|---|

Mechanical	NTPC, BHEL	Thermodynamics, fluid mechanics, machine design
Electrical	NTPC, BHEL	Power systems, electrical machines, control systems
Electronics & Communication	BEL	Communication systems, signal processing, electronic devices
Chemical	ONGC, GAIL	Process engineering, thermodynamics, refining/gas processing

Component	Tests

|---|---|

Technical	Discipline-specific core engineering knowledge
Aptitude	Quantitative reasoning, logical reasoning, verbal ability
General awareness	Often sector-specific (energy policy, PSU's own recent developments)

Area	What's assessed

|---|---|

Technical depth	Genuine understanding vs. memorized answers (via "why"/"how" follow-ups)
Applied judgment	Scenario-based engineering problem-solving
PSU/sector knowledge	Understanding of the specific PSU's business and current challenges
Organizational fit	Career motivation, "why this PSU"