NTT Kolkata 1A — New Town, West BengalNTT Global Data Centers · Building A, Kolkata 1 campus, Bengal Silicon Valley Tech Hub · 6.4 MW planned critical IT load · stage disputed

Kolkata 1A — KOL1-A — is the first building on NTT’s New Town campus, published today at 6.4 MW of planned client IT load. At the 2023 groundbreaking the same building was described as 6 MW of IT and 9 MW of facility load across 100,000 square feet. Those two descriptions give a facility-to-IT ratio of 1.50 on the earlier pair and nothing at all on the later one, because the current page publishes no facility figure for the building. The stage is the bigger problem. Coverage in February 2025 reported the campus launched. The operator’s page, read in October 2026, still says the building is planned. The registry therefore records 6.4 MW of capacity, publishes both figures, and counts zero. A building cannot be added to a market total on the strength of a LinkedIn post and a stale facility page.

1At a glance

26.0 or 6.4

Four hundred kilowatts is not a rounding error in a 6 MW building. It is 7%, and it is the difference between two primary sources from the same operator.

The 2023 pair is the more useful of the two, even though it is older, because it is the only description with both halves of the ratio. Six megawatts of IT in nine megawatts of facility is 1.50 — the fourth independent confirmation of NTT’s house ratio in this registry, and it comes from a groundbreaking press conference rather than a brochure.

The current 6.4 MW figure has no facility load beside it. So the newer number is larger and less usable, which is a pattern that repeats across this file: the more recent the statement, the less it says.

3Launched or planned

This is the record’s central problem and the registry’s answer is deliberately unsatisfying.

Four sources say launched. One — the operator’s own page — says planned. The registry follows neither and records zero.

The reasoning is worth stating, because it is the rule this whole file runs on: if the operator has not published a commissioned capacity, no third party can establish one. A LinkedIn post announcing a facility, an inauguration attended by a state minister and a directory listing all describe an event. None of them describes megawatts that are energised and available.

The distinction is not pedantry. A Chinese or American investor reading “40 MW operational” in a public list will price Kolkata as a 40 MW market, when the number that matters is 6.4 MW in one building with a disputed stage.

4What 6.4 MW means on this campus

A first building of 6.4 MW against a campus of 25 MW is an unusual shape, and it tells you how the campus will be built out.

Two observations. First, the campus ratio of 1.60 is above the 1.5 house standard, in the same way Bengaluru 2’s 1.67 is above it — small sites carry proportionately more plant. At 25 MW Kolkata is not a hyperscale campus and does not behave like one.

Second, a 6.4 MW first building followed by roughly 18.6 MW in the remaining buildings breaks NTT’s pattern of identical repeated modules. Every other campus in this file uses repeated buildings: three at 22.4 MW at Devanahalli, two at 17.4 MW at Chennai, four at Mahape. A 6.4 then an 18.6 is the only asymmetric campus in the registry.

Which is the strongest argument that there really are three buildings in Kolkata and the operator’s current two-building page is out of date. It is an inference and it is labelled as one.

5Procurement

6Limits and open questions

• Stage is disputed and the registry assigns no operating capacity. Four secondary sources say launched; the operator’s page says planned.
• Two published IT figures, 6.0 and 6.4 MW. Neither is adjudicated.
• The 1.50 ratio is computed from 2023 figures that may since have changed. It is used as an estimate, not a statement.
• The 18.6 MW remainder is derived by subtraction from a floor figure (“at least 25 MW”) and is not published.
• No rack count, PUE, occupancy or tenant list.
• The 100,000 sq ft building area comes from 2023 coverage, not from the current operator page.
• What would close it. One sentence from the operator confirming commissioned capacity. That is the entire gap on this record.

7Sources

Sources: NTT Global Data Centers Kolkata 1 facility page, Data Center Dynamics coverage of the February 2023 groundbreaking and February 2025 launch, W.media inauguration coverage, Times of India on the 2023 schedule, Varindia and Economic Times CIO on the groundbreaking statements, DatacenterMap listing, and Wikipedia’s list of West Bengal data centres.