Larsen & Toubro (L&T) is one of the largest and most respected infrastructure companies in India. Every year thousands of diploma holders dream of starting their career with L&T because it offers one of the best entry-level programs for fresh polytechnic graduates. The Diploma Engineer Trainee (DET) vacancy for the 2026 batch is now open or expected to be announced soon. This recruitment is specifically for diploma holders in Civil, Mechanical, Electrical and related branches who passed out in 2025 or 2026.
L&T DET program is designed to train young engineers on real projects — highways, metro rail, bridges, high-rise buildings, water & irrigation, power plants, factories and heavy engineering works. If you want a strong start with good training, decent stipend, structured career growth and the prestige of working with India’s top EPC company, L&T DET 2026 is one of the most sought-after opportunities for diploma students.
This guide covers everything in simple language — eligibility, selection process, salary during training, career path, how to apply through the careers portal, preparation tips, documents needed and answers to common questions.
Why L&T DET 2026 is the Best Choice for Diploma Holders
L&T does not treat DETs as temporary staff. The company invests heavily in training because it wants these young engineers to become skilled professionals who can handle real project responsibilities quickly. Here are the main reasons diploma students across India apply in huge numbers every year:
- Very good starting stipend + allowances during 12–18 months training
- Free or highly subsidized hostel + food at L&T training campuses
- Hands-on training on live projects — you learn by doing real work
- Clear growth path — DET → Junior Engineer → Engineer → Senior Engineer → Manager
- Work on iconic projects — Mumbai Coastal Road, Delhi-Meerut RRTS, bullet train, smart cities, defence manufacturing
- Strong job security — L&T rarely reduces staff even in slow economic periods
- Good PF, medical insurance, leave rules and safety standards
- L&T name opens many doors later — whether you stay long-term or move to other companies
For a diploma holder, very few organisations match the combination of practical training, pay, stability and reputation that L&T DET provides.
Eligibility Criteria for L&T DET 2026 Batch
L&T keeps eligibility simple so maximum diploma students can participate.
- Course — Full-time 3-year Diploma in Civil / Mechanical / Electrical / Electronics / Automobile / Instrumentation
- Passing year — 2025 or 2026 (some years allow 2024 pass-outs — confirm in official notice)
- Minimum marks — Usually 60% aggregate in diploma (relaxation for SC/ST/OBC in many cases)
- No active backlogs at the time of joining
- Age — Maximum 24–25 years as on joining date (relaxation for reserved categories)
- Gender — Both male and female candidates are eligible
- Nationality — Indian citizen
Note: Final-year students appearing for exams in 2026 are allowed to apply if they complete all requirements before joining.
Selection Process for L&T DET 2026
The process is competitive but fair. L&T receives lakhs of applications, but only well-prepared candidates move forward.
- Online Application — Submit through L&T careers portal or campus placement cell
- Online Aptitude Test — Quantitative aptitude, logical reasoning, verbal ability + basic technical MCQs (branch-specific)
- Group Discussion — 8–10 candidates discuss a topic for 15–20 minutes
- Technical Interview — Questions on diploma subjects, basic engineering concepts, project work
- HR Interview — Family background, willingness to work anywhere in India, salary expectations
- Medical Check-up & Document Verification — After final selection
The entire process usually takes 3–6 weeks from application to offer letter.
Salary & Benefits During Training and After Confirmation
During Training (12–18 months)
- Stipend — ₹25,000 to ₹32,000 per month (in-hand, depends on posting location)
- Hostel / accommodation — Free or very low cost at L&T campuses
- Food — Subsidized or free in mess
- Uniform & safety gear — Provided by company
After Confirmation (Junior Engineer)
- CTC — ₹4.5 lakh to ₹6.5 lakh per year (₹30,000–₹45,000 in-hand monthly)
- Allowances — Dearness, conveyance, mobile, hard-area (for remote sites), overtime
- Benefits — Provident Fund, gratuity, group medical insurance, leave travel concession, canteen, children education allowance
- Postings — Anywhere in India (metro cities, project sites, rural areas)
After 4–6 years many DETs reach Engineer level with CTC of ₹8–12 lakh per year. After 10–12 years good performers become managers with CTC of ₹15–25 lakh+.
Typical Career Path After Joining as DET
| Year Range | Designation | Typical Responsibilities | Approximate CTC Range |
|---|---|---|---|
| Year 1–2 | Diploma Engineer Trainee | Training + basic site exposure | ₹3–5 lakh |
| Year 3–5 | Junior Engineer / Engineer | Independent site responsibilities | ₹5–9 lakh |
| Year 6–9 | Engineer / Senior Engineer | Section in-charge, small team handling | ₹9–15 lakh |
| Year 10+ | Assistant Manager / Manager | Project coordination, profit & loss responsibility | ₹15–25 lakh+ |
Many DETs who joined in 2010–2015 are now managers or senior managers leading multi-crore projects.
How to Apply for L&T DET 2026 Through Careers Portal
L&T usually announces DET recruitment through:
- Official careers portal → www.larsentoubro.com/careers
- Campus placement cells of polytechnic colleges
- Job portals like Naukri.com (search “L&T DET 2026”)
- LinkedIn and official L&T social media handles
Step-by-step application process (when portal opens):
- Visit L&T careers page
- Search for “Diploma Engineer Trainee – 2026” or “Campus Recruitment – DET”
- Click “Apply Now”
- Register with email ID and mobile number
- Fill personal details, education, branch, marks, preferred posting location
- Upload resume, 10th & diploma marksheets, photograph
- Submit before last date (usually March–May 2026 for 2026 batch)
Keep checking the careers page from January 2026 onwards.
Preparation Tips for L&T DET 2026 Selection
- Aptitude Test
- Practice quantitative aptitude (speed, time & distance, percentage, profit-loss)
- Reasoning (puzzles, series, blood relations)
- Verbal (reading comprehension, synonyms-antonyms)
- Basic technical MCQs from diploma syllabus
- Group Discussion
- Speak clearly and politely
- Give others chance to speak
- Add 2–3 meaningful points
- Avoid arguing or dominating
- Technical Interview
- Revise diploma subjects (Strength of Materials, RCC Design, Surveying, Fluid Mechanics, Construction Materials, Estimating & Costing for Civil)
- Be ready to explain your final-year project in detail
- Know basic site practices (shuttering, bar bending, concrete mix, leveling)
- HR Interview
- Be honest about willingness to work anywhere in India
- Show interest in long-term career with L&T
- Prepare 2–3 questions to ask them (training program, posting policy)
Documents Required During Verification
- 10th marksheet & passing certificate
- Diploma marksheets & provisional/final certificate
- Caste / category certificate (SC/ST/OBC – if applicable)
- PwBD certificate (if applicable)
- Aadhaar card, PAN card
- Recent passport-size photographs
- Bank account details for stipend
Keep originals and self-attested photocopies ready.
Final Advice for Diploma Students
Getting selected as a Diploma Engineer Trainee in Larsen & Toubro is still one of the best possible career starts for polytechnic graduates in India. The training is excellent, the stipend is good, the projects are prestigious, the safety standards are high and the long-term career path is very strong.
If you are in the 2025 or 2026 diploma batch, start preparing now — revise diploma basics, practice aptitude, update your resume and stay updated on the official careers portal announcement.
