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Cartis diligence evidence schedule

Iron Mountain MUM-3

PRJ-0455 · Site · Navi Mumbai / Rabale MIDC, Maharashtra, India

Record last updated Oct 28, 2026

Scope and capacity

Iron Mountain’s current MUM-3 overview and FAQ target Phase I opening in the first quarter of 2028, followed by additional phased releases. The page still contains an older 2027 delivery reference; the more specific Phase I forecast does not imply that all 85 MW will open at once. New 85 MW full-build facility/campus expansion; supersedes the earlier 32 MW/H2-2025 plan.

Headline: 85 MW Planned critical IT

Numbers refer to their stated physical boundaries and are not added together. Source dates, claim dates and record updates have different meanings. Missing dates and locators are not inferred.

Current full build IT load · 85 MW

Planned / design or future potential · Iron Mountain MUM-3 (Project)

Claim 43885 · Recorded claim type: Forecast · Review: Approved with conflict · Claim date: Not stated

Headline treatment: Selected headline

  1. Iron Mountain breaks ground on 85 MW Mumbai data center

    Data Center Dynamics · Document date: Jan 19, 2026 · Primary

    Source reference: SRC-2437 · Recorded authority: Secondary

    Source URL

    https://www.datacenterdynamics.com/en/news/iron-mountain-breaks-ground-on-85mw-data-center-in-mumbai-india/

  2. India: your data center gateway to Asia

    Iron Mountain Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2433 · Recorded authority: Party primary

    Source URL

    https://datacenter.ironmountain.com/india-data-centers-information-contact

Current gross area · 130,000 square metres

Source report · Iron Mountain MUM-3 (Project)

Claim 43886 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. India: your data center gateway to Asia

    Iron Mountain Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2433 · Recorded authority: Party primary

    Source URL

    https://datacenter.ironmountain.com/india-data-centers-information-contact

Current gross area · 1,398,000 square feet

Source report · Iron Mountain MUM-3 (Project)

Claim 43887 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. India: your data center gateway to Asia

    Iron Mountain Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2433 · Recorded authority: Party primary

    Source URL

    https://datacenter.ironmountain.com/india-data-centers-information-contact

Current delivery target · 2027

Source report · Iron Mountain MUM-3 (Project)

Claim 43891 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. India: your data center gateway to Asia

    Iron Mountain Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2433 · Recorded authority: Party primary

    Source URL

    https://datacenter.ironmountain.com/india-data-centers-information-contact

Construction started · True

Source report · Iron Mountain MUM-3 (Project)

Claim 43892 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. Iron Mountain breaks ground on 85 MW Mumbai data center

    Data Center Dynamics · Document date: Jan 19, 2026 · Primary

    Source reference: SRC-2437 · Recorded authority: Secondary

    Source URL

    https://www.datacenterdynamics.com/en/news/iron-mountain-breaks-ground-on-85mw-data-center-in-mumbai-india/

AI high density design · True

Source report · Iron Mountain MUM-3 (Project)

Claim 43893 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. Iron Mountain breaks ground on 85 MW Mumbai data center

    Data Center Dynamics · Document date: Jan 19, 2026 · Primary

    Source reference: SRC-2437 · Recorded authority: Secondary

    Source URL

    https://www.datacenterdynamics.com/en/news/iron-mountain-breaks-ground-on-85mw-data-center-in-mumbai-india/

Contractor reported · Stirling & Wilson

Source report · Iron Mountain MUM-3 (Project)

Claim 43894 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. Iron Mountain breaks ground on 85 MW Mumbai data center

    Data Center Dynamics · Document date: Jan 19, 2026 · Primary

    Source reference: SRC-2437 · Recorded authority: Secondary

    Source URL

    https://www.datacenterdynamics.com/en/news/iron-mountain-breaks-ground-on-85mw-data-center-in-mumbai-india/

Operating capacity disclosed · False

Source report · Iron Mountain MUM-3 (Project)

Claim 43895 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. Iron Mountain breaks ground on 85 MW Mumbai data center

    Data Center Dynamics · Document date: Jan 19, 2026 · Primary

    Source reference: SRC-2437 · Recorded authority: Secondary

    Source URL

    https://www.datacenterdynamics.com/en/news/iron-mountain-breaks-ground-on-85mw-data-center-in-mumbai-india/

  2. India: your data center gateway to Asia

    Iron Mountain Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2433 · Recorded authority: Party primary

    Source URL

    https://datacenter.ironmountain.com/india-data-centers-information-contact

Customer disclosed · False

Source report · Iron Mountain MUM-3 (Project)

Claim 43896 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. Iron Mountain breaks ground on 85 MW Mumbai data center

    Data Center Dynamics · Document date: Jan 19, 2026 · Primary

    Source reference: SRC-2437 · Recorded authority: Secondary

    Source URL

    https://www.datacenterdynamics.com/en/news/iron-mountain-breaks-ground-on-85mw-data-center-in-mumbai-india/

  2. India: your data center gateway to Asia

    Iron Mountain Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2433 · Recorded authority: Party primary

    Source URL

    https://datacenter.ironmountain.com/india-data-centers-information-contact

Current design is additive to old plan · False

Source report · Iron Mountain MUM-3 (Project)

Claim 43897 · Recorded claim type: Not stated · Review: Approved · Claim date: Not stated

  1. Web Werks-Iron Mountain to invest Rs1,400 crore in Mumbai-3

    Web Werks · Document date: Jun 14, 2023 · Primary

    Source reference: SRC-2435 · Company announcement · Recorded authority: Party primary

    Source URL

    https://www.webwerks.in/web-werks-iron-mountain-invest-rs-1400-cr-develop-data-center-navi-mumbai

  2. India: your data center gateway to Asia

    Iron Mountain Data Centers · Document date: Not stated · Primary

    Source reference: SRC-2433 · Recorded authority: Party primary

    Source URL

    https://datacenter.ironmountain.com/india-data-centers-information-contact

Counterparties and capital

Iron Mountain Data Centers · Operator · CMP-1123

Stirling & Wilson · Contractor · CMP-1125

This schedule captures public Cartis research. It is not a title, lien or legal-opinion report. Document page/section locators and claim review timestamps are included only when published; this version has no separate locator or claim-review-time feed.