CMWSSB Apprentice Recruitment 2026 - Apply Online for 108 Graduate and Technician Diploma Apprentice Posts

Graduate Apprentices must hold a valid B.E. or B.Tech degree at the time of application. Technician Diploma Apprentices must have completed a 3-year engineering or technology diploma recognised by the All India Council for Technical Education (AICTE) or equivalent state boards. If your degree or diploma is still awaited, check the official notification to confirm whether final-year candidates are eligible.

Use the age calculator to confirm your eligibility once the age limit is clarified from the official NATS portal or CMWSSB website.

• Graduate Apprentice: ₹12,300 per month during 12-month apprenticeship; no structured pay scale post-apprenticeship without permanent appointment.
• Technician Diploma Apprentice: ₹10,900 per month during 12-month apprenticeship.
• Estimated in-hand (after ~10% NPS deduction and minimal tax): ₹11,070–₹11,070 for diploma; ₹11,070–₹11,070 for graduates, exact calculation depends on final deductions.

Apprenticeship stipends are not regular salary, they are performance-based, non-pensionable earnings. The amount covers the training period (typically 12 months). Post-apprenticeship, permanent employment depends on CMWSSB's absorption policy and vacancy availability. Candidates not absorbed may transition to other sectors. Use the salary calculator to estimate deductions and in-hand amount based on state tax laws.

Career growth post-apprenticeship follows CMWSSB's grade structure for permanent posts. Graduate Apprentices may qualify for higher pay bands if appointed as Junior Engineers or similar positions; diploma holders may progress to Senior Technician or Technician roles. Exact promotion timelines and permanent placement are contingent on board recruitment cycles and performance ratings during apprenticeship.

1. Photo/signature format mismatch: Submitting colour photos with non-white backgrounds or signatures larger than the specified dimensions causes instant rejection. Verify size, format, and background before upload.
2. Incomplete educational qualifications: Failing to list all qualifications or leaving the degree/diploma field blank. NATS cross-checks your highest qualification against vacancy requirements; missing entries lead to rejection during eligibility screening.
3. Mismatched category declaration: Applying in a category (e.g., OBC) without a valid certificate from the issuing authority. CMWSSB conducts document verification; category mismatch results in disqualification.
4. Ineligible educational background: Diploma holders applying for Graduate Apprentice posts or vice versa. Verify the exact degree/diploma required for each post before selecting the vacancy.
5. Missing or invalid contact details: Providing an inactive email or wrong phone number prevents CMWSSB from sending result notifications or call-for-documents letters. Double-check both before submission.
6. Late submission: Attempting to apply after 17 October 2026 23:59 hrs. The online portal closes on the last date; no backdated or manual applications are accepted. Apply at least 2 days before the deadline to avoid server overload.

After your name appears in the final merit list and you clear document verification, CMWSSB will issue a formal apprenticeship agreement and joining letter specifying the start date, reporting location (likely a CMWSSB regional office or treatment plant), and terms of engagement. You must report on or before the joining date with attested copies of all educational and category certificates.

The 12-month apprenticeship spans practical training in water treatment, distribution, sewerage operations, and asset management. You will be assigned to a mentor (Senior Engineer or Technician) and rotate through departments such as treatment plants, pumping stations, pipe laying sites, and control rooms. Successful completion requires satisfactory performance ratings and attendance. Post-apprenticeship, CMWSSB may offer permanent employment to high performers as per vacancy and budget approvals, this is discretionary and not guaranteed. Candidates not absorbed typically transition to private water utilities, consultancies, or contractors in the water and sanitation sector.

The Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB), established in 1977, is the nodal agency responsible for drinking water supply, wastewater collection, treatment, and disposal across Chennai city and surrounding areas. Operating as a statutory body under the Government of Tamil Nadu, CMWSSB manages over 1.5 million water connections, 1.2 million sewerage connections, and serves a population of approximately 7 million residents. The board operates multiple water treatment plants, pumping stations, and sewerage treatment facilities, making it one of India's largest urban water and sanitation utilities.

CMWSSB is committed to sustainable water management, non-revenue water reduction, and adopting modern technologies like IoT-based monitoring and advanced filtration. The organisation recruits engineers and technicians regularly to strengthen its operational and management capacity. Working for CMWSSB offers exposure to large-scale critical infrastructure, exposure to national and state-level water policy initiatives, and a pathway to senior technical roles. Apprentices gain certification recognised across India's water sector and enhanced employability in public and private utilities.

A Graduate Apprentice in CMWSSB typically rotates through engineering departments: water treatment plant operations, pipeline design and laying, pump station management, and hydraulic modelling. Your day-to-day work includes assisting Senior Engineers in plant operations, quality testing (pH, turbidity, chlorine levels), drawing and site supervision, and documenting maintenance records. You will use SCADA systems (automated control), GIS mapping tools, and laboratory equipment. Most work is site-based with occasional office desk work for reporting and design. Reporting is to the Plant-in-charge or Project Engineer. Uniform is not mandatory, though safety equipment (helmet, safety vest, boots) is required on construction/plant sites. The role involves moderate public interaction when responding to water supply complaints or customer service queries.

A Technician Diploma Apprentice performs more hands-on technical duties: operating pumps and valves, laying and repairing pipes, conducting routine maintenance, reading meters, and assisting in treatment plant chemistry. Your work is predominantly field-based, involving early shifts at treatment plants or distribution networks. You will handle tools, measuring instruments, and occasionally heavy lifting. Safety protocols are strict. Reporting is to the Junior Engineer or Senior Technician. Uniform (shirt, trousers, cap) is provided and mandatory. Interaction with field staff and local residents is frequent. Both roles demand physical presence during 6–8 hour shifts (standard government hours), sometimes extended during emergency water crises or monsoon-related breakdowns.

CMWSSB supplies clean water to and manages sewage for Chennai city. The organisation is hiring 108 apprentices for 12 months to train in water treatment, pipe networks, and plant operations. If you have an engineering degree (B.E./B.Tech) or a 3-year engineering diploma, you can apply online by 17 October 2026 at https://nats.education.gov.in/. You'll earn ₹12,300 (graduates) or ₹10,900 (diploma holders) monthly and gain hands-on skills. After 12 months, you may get a permanent job with CMWSSB if your performance is strong. Apply now if water supply engineering interests you.