NTT Mumbai 6 in Andheri East is 19.2 MW of critical IT load, operational, and counted. It matters structurally rather than commercially: it is the only large NTT Mumbai building outside Chandivali, where the company runs 136 MW across four buildings — 85% of its Mumbai capacity. Which makes this the only large NTT site in the city with independent power, cooling and fibre from that cluster. In a market where everyone else’s capacity is concentrated on one node, a second node is worth more than its megawatts say.
1At a glance
2The only large site off-campus
NTT Mumbai looks like five buildings. Geographically it is one campus and three small satellites.
| Location | MW | Buildings | Share |
|---|---|---|---|
| Chandivali | 136.1 | Mumbai 5, 7, 8 and 9 | 85% |
| Andheri East | 19.2 | Mumbai 6 | 12% |
| Vikhroli | 5.4 | two exchange sites | 3% |
| Fort | 0.3 | the BSE site | 0.2% |
| Total | 161 | 8 records | — |
This is the same concentration pattern documented across every operator in this file — STT in Navi Mumbai, CtrlS in Mahape and Airoli, NTT in Chandivali. Indian data centre capacity clusters at the suburb level, not the city level, because power, fibre and land all arrive at specific points.
Mumbai 6 is therefore a genuinely different asset from its four siblings. It has its own utility connection, its own fibre routes and its own water supply, which means a grid event at Chandivali does not take it down.
3Concentration, and what the second node is worth
For a tenant, node redundancy is usually bought across cities. This is the rare case of buying it across ten kilometres.
| Risk | Chandivali cluster | Andheri East |
|---|---|---|
| Grid event at the substation | affects 136 MW at once | unaffected |
| Fibre route cut | one landing path | a different path |
| Water restriction | shared municipal supply | independent supply |
| Flooding or local restriction | campus-wide | site-specific |
| Transport and access | one road network | a different one |
None of these risks is theoretical in Mumbai. The city floods, its grid is stressed in summer, and its water supply is administered. A tenant with a genuine availability requirement will pay for a second node inside the same metropolitan area, and there is limited supply of exactly that.
Which is the commercial argument for this building: 19.2 MW is not large, but it is the only large capacity in the NTT Mumbai estate that is not on the same site as everything else.
4Procurement
5Limits and open questions
- No rack count or floor area published for this building.
- No PUE stated, and unlike Mumbai 7 there is no facility-power figure to derive it from.
- No commissioning date on the card.
- Node independence is inferred from geography and separate addresses, not from a published utility or fibre statement.
- No tenant information.
- What would close it. A rack count and a confirmation of independent feeds. Both are standard diligence questions.
6Sources
Sources: NTT Global Data Centers Mumbai facility pages, NTT India corporate site, Data Center Dynamics reporting on NTT’s Mumbai launches, and Indian market commentary on the Chandivali and Andheri data centre nodes.