Chennai, Tamil Nadu — Engineering giant Larsen & Toubro (L&T) has officially entered the high-performance computing market with a landmark mega-project. Through its digital infrastructure subsidiary Vyoma.AI and execution arm LTN Compute, L&T is constructing India’s largest single-cluster AI supercomputer for US-based cloud innovator Together AI.
Valued between ₹10,000 crore and ₹15,000 crore (~$1.2B–$1.57B), this state-of-the-art “AI Factory” positions India as a premier destination for global, next-generation artificial intelligence workloads.
The Core Players
- L&T (The Builder): Known for building bridges, airports, and power plants, L&T is using its tech division—Vyoma.AI—to build specialized digital infrastructure.
- NVIDIA (The Brain Maker): Providing 10,000 top-of-the-line AI microchips (NVIDIA B300 “Blackwell” GPUs).
- Together AI (The Buyer): A US-based cloud company paying up to $1.57 billion (~₹10,000–₹15,000 crore) to rent this massive computing system.
Location: Why Sriperumbudur, Chennai?
The facility is being built at L&T’s Vyoma.AI Data Center Campus (SPD1 / CHN 1).
- Town / Area: Sriperumbudur, Kanchipuram District, Tamil Nadu (602108).
- Landmark: Located in the SIPCOT industrial corridor along the Chennai–Bengaluru Highway (NH-48), southwest of central Chennai
Gigawatt-Scale Hub: The site is master-planned as a gigawatt-scale infrastructure campus. Phase 1 alone is engineered to handle 250 Megawatts (MW) of power capacity with 150 MVA of dedicated power readiness.
Connectivity Advantages: Sriperumbudur provides high-density power connections alongside direct links to Chennai’s undersea fiber optic landing cables. This offers ultra-low latency data transmission to North America, Europe, and Southeast Asia.
What Is Being Built?
Unlike standard data centers that store websites or photos, an AI Factory is designed strictly to train and power massive artificial intelligence models.
| Feature | Details |
| Microchips | 10,000 NVIDIA B300 (“Blackwell Ultra”) GPUs — NVIDIA’s top-tier AI superchips. |
| Setup Type | Single-Cluster Architecture — All 10,000 chips are located in one building and connected with ultra-fast networking to act as one unified mega-brain. |
| Main Workloads | Heavy-duty AI model training, fine-tuning, and real-time processing (inference) for Together AI’s global users. |
Timeline & Key Milestone Dates
- Official Announcement: August 13, 2026 — L&T formally declared the “Mega Order” win and strategic alliance with Together AI via regulatory disclosures.
- Current Status: Under Active Construction (Mid-2026) — They are currently building the facility and bringing in the equipment at the Sriperumbudur site
- Expansion Plans: The Phase I ((250 MW) supplies enough power for this giant system, with extra space on the campus to add thousands more computer chips whenever companies need them.
Why This Project Matters
This deal marks a major shift in the global technology landscape. Until now, most advanced AI supercomputers and computing centres were mainly located in the United States and Europe. The decision by global AI companies such as Together AI to establish major computing hubs in India shows the country’s growing importance in the AI industry.
For L&T, this deal also opens a new chapter. The company is moving beyond traditional construction and infrastructure projects into advanced data centres. These facilities will provide powerful computing capacity through 1GPU-as-a-Service (GPUaaS), helping businesses develop AI models and carry out complex, high-performance computing tasks without building their own expensive infrastructure.
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- GPU-as-a-Service (GPUaaS) means renting super-powerful AI computer chips over the internet for a short time instead of spending billions of dollars to buy them outright. ↩︎