MUM 2 at Airoli is listed by Nxtra by Airtel at 7 MW of IT power across 1,100 racks — 6.4 kW a rack. Airoli and the adjoining Mahape belt is where India’s hyperscale money is currently going: PDG’s MU1 campus next door has about 50 MW live and is designed for 150 MW, an Equinix facility in Airoli Knowledge Park carries 48 MW, and NTT’s NAV1 is planned to 150 MW. A 7 MW building in that company is a legacy asset in the best possible location.
1At a glance
27 MW among 48 MW neighbours
The useful comparison here is not with other Nxtra buildings. It is with the neighbours.
| Operator and site | Scale | Status |
|---|---|---|
| PDG MU1, Airoli | about 50 MW live, 150 MW campus design | operating and expanding |
| Equinix, Airoli Knowledge Park | 48 MW | operating, reported to have a 220 kV substation with diverse feeds |
| NTT NAV1, Mahape–Airoli boundary | up to 150 MW across four planned buildings | building, with a 45 MW first building reported live |
| AirTrunk (formerly Lumina), Airoli | 60 MW in two phases | in development |
| Nxtra MUM 2, Airoli | 7 MW | listed, stage unverified |
Read that table as a supplier and the conclusion is immediate. This micro-market contains several hundred megawatts of operating and committed capacity, and Nxtra’s Airoli building is 7 MW of it — around 2% of the local total. The site is not where a capacity sale happens. It is where a relationship that can reach Nxtra’s 1 GW plan begins.
The strategic value of the location is real, though. An operator with a small legacy hall in Airoli holds land, a connection and a licence in a micro-market where land and connections are the binding constraints. That is why these buildings do not close even when they are small: the site is worth more than the plant on it.
3Why small legacy sites survive
A 7 MW building surrounded by 150 MW campuses looks like a candidate for replacement. Three things keep it in service.
| Reason | Explanation |
|---|---|
| Latency and address | Tenants who need to be in Airoli have limited choices, and an existing connection is unlikely to be re-let to a competitor |
| Network effects | Carrier-neutral buildings accumulate cross-connects. Every tenant that joins makes the building more valuable to the next one, and moving means re-establishing them |
| Approvals and power | A live connection in a constrained corridor is an asset that cannot be recreated quickly, whatever the building’s size |
| What erodes it | The neighbours are building at 11 kW and above per rack. At 6.4 kW this building cannot host the workloads now being ordered, which puts a ceiling on rent |
The density point is the one to watch. Nxtra’s own newer halls at Mahape run at 11.3 and 11.7 kW a rack. This one runs at 6.4. Every generation of equipment since 2023 has made that gap more expensive to bridge, and the migration path for high-density tenants points at Mahape rather than here.
A building at 6.4 kW a rack cannot sell to AI buyers. It can sell to everyone who is not an AI buyer, which in India in 2026 is still most of the market.
That is the honest state of the installed base, and it is why AI capacity commands a premium.
4Timeline
- Airoli and Mahape become the centre of Navi Mumbai data centre development, with NTT, and later PDG, Equinix and others building large campuses
- Hyperscale investment in the micro-market accelerates: PDG MU1 expands toward 150 MW, NTT builds NAV1, AirTrunk enters the corridor
- The operator’s Mumbai page lists MUM 2 at 7 MW of IT power and 1,100 racks, carrier neutral, with no commissioning date
- No stage change and no additional detail for this facility in the public record
5Procurement
6Limits and open questions
7Sources
Sources: Nxtra Mumbai data centre page, Nxtra by Airtel site, DataCenterMap Mumbai listings, Baxtel facility records, Data Center Dynamics on NTT NAV1 and PDG MU1, Airtel FY26 annual report.