PSU Jobs for Diploma Holders 2025 - Salary, Top Companies

Public Sector Undertakings (PSUs) are really popular jobs in India, especially for engineering diploma holders. Hundreds of thousands of diploma holders in Electrical, Mechanical, Civil, and Electronics engineering apply for PSU jobs each year, that offer job security, great salaries, growth opportunities, and social respect. If learners have an engineering diploma and are looking to create a stable, rewarding career, PSU jobs would be a perfect solution.

Why Choose PSU Jobs After a Diploma?

Working in a PSU comes with multiple great advantages. The primary advantage is job security. PSU employees have a stable job with known promotion policies, salary improvements at regular intervals, and retirement benefits. They usually have better work-life balance than many private sector employees, working a set number of hours with defined breaks and may receive benefits such as housing facilities, medical, and travel expenses.

*Based on recent recruitment notifications and reliable sources:

Diploma holders are hired to work in technical jobs, particularly in maintenance, operation and supervision. They gained useful experience in working on large scale projects in the power industry, refineries, railways, manufacturing units, and public infrastructure and contributed to India's industrial development.

List of PSU Jobs for Diploma Holders in Engineering In India

Here’s a detailed list of the most aspired PSU jobs in India, specifically for engineering diploma holders, covering key PSUs, job roles, and typical departments they hire for:

Manufacturing & Heavy Industries

PSU	Job Profiles	Departments / Areas
BHEL (Bharat Heavy Electricals Limited)	Supervisor Trainee Technician Junior Supervisor	Power plant equipment manufacturing, assembly, and quality control
SAIL (Steel Authority of India Limited)	Operator-cum-Technician (OCT) Attendant-cum-Technician (ACT) Junior Engineer	Steel production, rolling mills, and maintenance
BEL (Bharat Electronics Limited)	Engineering Assistant Trainee Technician	Electronics, radar, communication systems

Power & Energy Sector

PSU	Job Profiles	Departments / Areas
NTPC (National Thermal Power Corporation)	Diploma Trainee	Thermal power plant operation, electrical & mechanical maintenance
PGCIL (Power Grid Corporation of India Limited)	Diploma Trainee	Transmission lines, substations, SCADA
NHPC (National Hydroelectric Power Corporation)	Junior Engineer	Hydro plant operation, civil works, instrumentation
NPCIL (Nuclear Power Corporation of India Limited)	Scientific Assistant, Technician	Nuclear plant operations, control systems

Oil, Gas & Petrochemicals

PSU	Common Job Profiles	Departments / Areas
ONGC (Oil & Natural Gas Corporation)	Assistant Technician Junior Technical Assistant	Drilling, production, instrumentation
IOCL (Indian Oil Corporation Limited)	Engineering Assistant Technical Attendant	Pipelines, refineries, and maintenance
GAIL (Gas Authority of India Limited)	Technician Junior Engineer	Gas processing plants, pipeline networks
HPCL / BPCL	Technician	Refinery operations, quality testing

Transport & Railways

PSU	Common Job Profiles	Departments / Areas
Indian Railways ( RRB)	Junior Engineer (JE)	Electrical, mechanical, civil infrastructure, signal & telecom
DMRC (Delhi Metro Rail Corporation)	Junior Engineer	Track, traction, signaling, rolling stock maintenance

Other Major PSUs & Infrastructure

PSU	Common Job Profiles	Departments / Areas
Cement Corporation of India (CCI)	Junior Engineer	Plant operations
NALCO (National Aluminium Company Limited)	Junior Engineer	Smelting, power, civil
RCFL (Rashtriya Chemicals & Fertilizers Limited)	Technician, Operator	Fertilizer plants, process units
MECL (Mineral Exploration Corporation Limited)	Technician	Mineral exploration, drilling support

How Recruitment Works for PSU Jobs for Diploma Holders

PSU roles not only provide a stable government job but also practical engineering exposure, steady salary growth, and long-term career benefits.

PSU-Specific Exams
Many large PSUs conduct their own written exams tailored to the job role. These exams usually test:

• Technical knowledge from the relevant diploma syllabus
• General aptitude and reasoning
• Sometimes English and General Awareness
  Examples: BHEL Diploma Trainee exam, SAIL Operator-cum-Technician exam, NTPC Diploma Trainee exam, etc.

Competitive Exams

Some central and state government PSUs recruit through large national-level exams:

• SSC JE (Staff Selection Commission): For positions like Junior Engineer in CPWD, MES, CWC, and other government departments.
• RRB JE (Railway Recruitment Board): For diploma holders to join Indian Railways in technical departments (civil, electrical, mechanical, etc.).

These exams typically include technical subjects, general intelligence & reasoning, quantitative aptitude, and general awareness.

Direct Recruitment / Test / Interview
For certain roles, especially technician or operator posts, PSUs may:

• Shortlist candidates based on diploma marks/merit
• Conduct trade tests to check practical skills
• Follow up with document verification and medical fitness tests

Some also include personal interviews to assess soft skills, attitude, and domain understanding.

Diploma holders are hired for PSU jobs through specialized PSU exams, well-known competitive examinations or directly through skill tests and interviews. All methods aim to identify candidates with technical skills as well as the ability to work and integrate successfully into technical workplaces.

How much do PSU Engineers earn After a Diploma? 

Polytechnic diploma holders aim for PSU jobs due to the financial stability offered in a competitive world. Here are the other reasons why PSU jobs appeal to applicants: 

• Starting salary: ₹25,000–₹40,000 per month, depending on PSU and location.
• Other benefits: DA, HRA, medical insurance, travel allowances, retirement benefits, and subsidized housing or canteens.
• Long-term growth: Promotions, periodic pay revisions, and pensions after retirement.

Eligibility for Diploma Holders for PSU

To apply for PSU jobs, diploma holders generally need:

• A 3-year full-time diploma in a relevant engineering field from a recognized institute.
• Minimum marks are usually around 60%; they vary by PSU and category. 
• Age is usually between 18 and 28 years (with relaxations for reserved categories).
• Physical and medical fitness as per job requirements.

Growth Opportunities for Diploma Holders working in PSU

Starting as a Junior Engineer or Technician is just the beginning. Diploma holders in PSUs can:

• Take departmental exams to become an Assistant Engineer and for higher levels of staff.
• Enrolling in a B.Tech (Lateral Entry) program that is offered either while working or as a part-time alternative, increases the possibility of obtaining promotion goals sooner.
• Move into management or specialized positions based on experience and higher qualifications.

B.Tech Lateral Entry for Working Professionals

Diploma Holders can apply for the advanced qualification, and they can enroll for the B.Tech Lateral Entry meant for working professionals. Applicants can enroll for the hybrid program, and the duration of the program is 3 years. The program is designed for working professionals so they can balance their higher studies while continuing their jobs. Universities offering the B.Tech for Working Professionals program are: 

• B.Tech for Working Professionals from Lingaya’s Vidyapeetha University 
• B.Tech for Working Professionals from Shri Venkateshwara University 
• B.Tech for Working Professionals from Sanskriti University 

After graduation, higher positions are available in the PSU because candidates are eligible for the GATE entrance exam. GATE entrance exam score is required for various top positions available in the PSU.