India’s Data-Centre Capacity: Five Numbers, Different Bases

Five figures, five source labels

The figures often appear together in headlines, but the sources do not publish a shared denominator or a cross-provider bridge. Read each number with its source, date and stage label attached.

What MeitY actually told Parliament

A Ministry of Electronics and Information Technology release says the data-centre industry had grown from 375 MW in 2020 to a “current capacity of about 1,575 MW.” It records that the information was submitted by the Minister of State for Electronics and IT in the Lok Sabha on 5 August 2026; the Press Information Bureau posted the release on 6 August.[1]

This is stronger provenance than a press paraphrase: it is a government-published account of a ministerial reply to Parliament. But the wording still matters. The release uses “installed capacity” and “current capacity”; it does not specify whether the MW value means IT load, gross facility power, secured power, commissioned buildings, or another perimeter. Nor does it give a data cut-off more precise than the reply date. So the figure can be cited as MeitY’s stated figure—but should not be relabelled “1,575 MW of operational IT load” unless a source provides that basis.

Why the H1 estimates sit near 1.8 GW without becoming one figure

C&W’s 23 September H1 update reports 1,789 MW of operational capacity as of H1 2026. It also says the country’s top seven data-centre markets added 178 MW during the half-year.[4]

Separately, Moneycontrol’s 8 October report says CBRE put India’s operational capacity at nearly 1,750 MW at end-H1 2026, with Mumbai accounting for 52% and Chennai 18%. CBRE’s public report page is dated 21 September and confirms Mumbai’s 52% share of operational stock, but its accessible summary does not give the 1,750 MW total. That absolute capacity figure is therefore presented here as media-reported as CBRE’s estimate, not as a number verified from the accessible CBRE summary page.[2][3]

The proximity of 1,750 MW and 1,789 MW is not proof of an agreed national figure. Both are consultancy estimates for H1, but the accessible summaries do not publish a common facility universe, capacity-basis definition, treatment of portfolios and phases, or a reconciliation to the government’s 1,575 MW statement. This article does not subtract the figures to create a “missing MW” total, average them, or choose a winner.

The 2 GW figure is a forecast—not today’s inventory

October coverage of CBRE’s H1 report describes roughly 2 GW of operational capacity as a year-end milestone. As of the 1 November 2026 research cutoff, 31 December has not arrived; the 2 GW figure must remain a forecast or outlook, not an achieved result.[5]

The forecast also does not resolve the earlier stock estimates. A year-end outlook is a future date; the 1,575 MW, 1,750 MW and 1,789 MW figures refer to different sources and earlier reference points. A later forecast should not be used to “correct” an earlier estimate without checking how each source defines commissioned and operational supply.

What Gridvik’s 778.69 MW count represents

Gridvik’s public India Data Centre Registry page reports 778.69 MW in its “Operating” stage. The same page displays 242 source-linked records and describes a reconciled set of 130 counted records behind its stage totals. This is a Gridvik-published, record-derived figure—not a MeitY statistic, a CBRE or C&W estimate, or independent third-party validation.[6]

The Registry’s own methodology says that capacity basis is stated at record level: IT load, gross facility power and secured contracted power are not interchangeable. It also says public conflicts remain visible and parent/child records are not summed together. Those controls help explain how the register is constructed, but they do not turn its mapped records into a complete, externally audited national census. An aggregate should not be compared directly with a consultancy’s operational-stock estimate unless the facility universe, MW basis and cut-off date are first made consistent.[6]

For that reason, the article does not describe 778.69 MW as “India’s true operational capacity,” derive a shortfall against the consultancy estimates, or equate Registry records with buildings. A record may represent a portfolio, campus or phase rather than a single facility. The figure remains explicitly labelled as Gridvik’s own mapped Registry count.

Why this is not a 2.25× national capacity gap

A raw division of a media-reported CBRE H1 estimate by Gridvik’s Registry count would make two differently constructed numbers look like a single same-date, same-basis comparison. The sources do not establish that equivalence. This article therefore does not publish a “2.25× gap”, claim that one source missed a fixed amount of capacity, or imply that the Registry count disproves a government or consultancy figure.

The defensible conclusion is narrower: multiple organisations publish capacity numbers, but their public materials use different labels, reference points and measurement systems. A reconciliation remains an open data task, not a ratio that can be settled by arithmetic alone.

What a true reconciliation would need

• One reference date: distinguish the date of a report, the date of the underlying data cut, and the date a ministerial statement was submitted.
• One physical unit: say whether the counted item is a facility, building, phase, campus, operator portfolio or a broader programme.
• One MW basis: separate IT load from gross facility power and contracted or secured power; do not convert between them without source data.
• One stage rule: define what counts as operational, commissioned, under construction, planned or merely announced.
• Explicit overlap rules: prevent double counting across campus umbrellas and child buildings, operator/tenant/host relationships, and multi-phase programmes.
• Record-level evidence: retain source links, source dates, confidence and treatment of conflicting figures so changes can be audited.

Until those fields are aligned, the responsible answer is source-specific: “MeitY stated about 1,575 MW in its August reply”; “C&W estimated 1,789 MW operational in H1”; “Moneycontrol reported CBRE’s nearly 1,750 MW H1 estimate”; “CBRE’s 2 GW is an end-year outlook”; and “Gridvik’s Registry reports 778.69 MW in its own operating-stage count.”

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