L&T Vyoma — the digital infrastructure arm of Larsen & Toubro, formerly Cloudfiniti — held a Bhoomi Pujan on 21 January 2026 for a 40 MW green, AI-ready data centre at Mahape in Navi Mumbai, the first phase of a planned 100 MW campus. The operator’s own specification page is unusually specific: 40 MW of IT load, G+4 floors, a 2.45-acre site, 2,500 kg per square metre floor loading. Forty megawatts on two and a half acres is 16.3 MW per acre — the densest IT-load build in this registry, and denser than AirTrunk’s Chandivali at 12.9 on a facility basis. Not disclosed: a completion date, a capital cost, or a tenant.
1At a glance
2Sixteen point three megawatts per acre
| Build | MW | Basis and geometry |
|---|---|---|
| L&T Mahape BOM 02 | 16.3 per acre | 40 MW IT on 2.45 acres, G+4 |
| Iron Mountain MUM campus | 17.1 per acre | 93.8 MW facility at completion, 5.5 acres, disputed |
| CapitaLand Chennai 01 | 13.3 per acre | 53 MW gross on 4 acres, floor area ratio 3.4 |
| AirTrunk BOM3 Chandivali | 12.9 per acre | 48 MW facility on 3.71 acres |
| AirTrunk BOM1 Airoli | 10.4 per acre | 62 MW facility on 5.94 acres |
| AirTrunk BOM2 Mahape | 9.0 per acre | 120 MW facility on 13.3 acres |
| Noida 2 campus | 8.8 per acre | 52.8 MW IT on 6 acres |
Compare the two Mahape rows, because they sit in the same node. AirTrunk BOM2 spreads 120 MW over 13.3 acres. L&T puts 40 MW on 2.45. AirTrunk’s build is a campus; L&T’s is a single G+4 building on an infill plot.
The floor loading is the other tell: 2,500 kg per square metre is heavier than a conventional raised-floor hall needs, and it is what lets a building stack high-density liquid-cooled halls on five levels.
Indian data centre land in Navi Mumbai is scarce, expensive and does not scale. Every operator is solving the same equation: fixed land, rising megawatts.
16.3 MW of IT per acre is the current answer from a company that builds data centres for other people. It is also the answer that tells you what a 2,000 sq m MIDC plot in Mahape is now worth.
If this becomes the standard, the constraint on Indian capacity stops being land and becomes the substation — which is exactly what the rest of this registry shows.
3Thirty or forty megawatts
| Source | Date | Figure | Context |
|---|---|---|---|
| L&T press release and trade coverage | Jan 2026 | 40 MW | Bhoomi Pujan, first phase of a 100 MW campus |
| Operator specification page | 2026 | 40 MW IT load | Mahape BOM 02, G+4, 2.45 acres |
| L&T annual review, hyperscale roadmap | 2026 | 30 MW | LNT NMP 1 Mahape, status feasibility completed |
| Inc42 feature | Aug 2026 | two facilities of about 40 MW each | Campus potentially scaling to 100 MW |
The annual review’s 30 MW is the interesting one, because it is the sober document. A company’s annual review lists the project on a status table next to its live assets; a press release announces a ceremony. Where they disagree, the review is more likely to reflect current design.
The most likely explanation is a 40 MW nameplate against a 30 MW first fit-out — the building is designed for 40 and the initial power draw is 30. The registry carries 40 MW because that is the figure published twice, in the release and on the specification page, and it flags the 30 MW rather than resolving it.
The campus arithmetic is also unresolved. The release says 100 MW campus; the Inc42 account describes two facilities of around 40 MW each. Forty plus forty is 80 MW, which leaves 20 MW unaccounted for in the campus plan.
4No completion date, from the country’s largest contractor
Larsen & Toubro is the largest construction and engineering company in India. This is the one operator in the registry whose build timeline should be the most predictable, and it has published the least.
| Disclosed | Not disclosed |
|---|---|
| Site area, 2.45 acres | Completion date |
| IT load, 40 MW | Capex for the building |
| Floors, G+4 | Substation voltage and capacity |
| Floor loading, 2,500 kg per sq m | Anchor tenant or pre-let status |
| Cooling, direct-to-chip liquid | Phase schedule for the 100 MW campus |
| Workload targets | Second Mahape building timing |
An EPC contractor building for itself has a structural cost advantage: no contractor margin, no third-party programme risk, and full visibility of construction pricing. That is presumably why L&T entered this market and why it is targeting build-to-suit and neo-cloud workloads rather than pure wholesale hyperscale.
The commercial read for a tenant or an investor: a 40 MW IT building at 16.3 MW per acre in Mahape, with no announced schedule, is a capacity option, not capacity. It should be priced as an option until a completion date exists.
The corporate context is also live. L&T is transferring its data centre and cloud services business into its wholly owned subsidiary Vyoma.AI for ₹1,400 crore by way of a slump sale, expected to complete by 31 October 2026 — five days after this record was verified.
5Procurement
6Limits and open questions
- No completion date and no capex. The release is explicit that no timeline was given.
- 30 MW in L&T’s annual review against 40 MW in the release. Unresolved; the registry counts 40 MW and flags the conflict.
- The 100 MW campus does not reconcile with “two facilities of about 40 MW each”. Twenty megawatts are unaccounted for.
- No substation is published — no voltage, no MVA, no connection date. At 40 MW that is the binding constraint.
- 2.45 acres is a single-source figure from a directory listing of the operator’s specification page.
- 16.3 MW per acre uses the 2.45-acre site. If the plot includes common campus land, the true ratio is lower.
- 40 MW is counted as IT load, which is the tightest scope published for this record.
- What would close it. A completion date and a substation capacity. Nothing else in the record is missing.
7Sources
Sources: the Larsen & Toubro Vyoma press release of 21 January 2026; The Hindu and ETV Bharat coverage of the same date; the L&T annual review data centre roadmap; the L&T Vyoma Mumbai data centre specification page; a directory listing of the Mahape BOM 02 specifications; and Inc42 coverage of the Vyoma.AI restructuring.