Colt DCS Mumbai 3
Under constructionColt DCS Mumbai 3 is a data center in Navi Mumbai, India, operated by Colt DCS, with 64 MW of published IT capacity, currently under construction.
64 MW AI-ready third building on Colt DCS and RMZ's Navi Mumbai campus, under construction since October 2026 and pre-let to a first hyperscale customer, with hybrid air and direct-to-chip liquid cooling.
Coloprice Score
20 out of 100
limited data · #174 of 307 in India
- Resilience0/35
- Compliance0/20
- Transparency4/20
- Scale13/15
- Maturity3/10
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Mumbai 3 is the third building on the Navi Mumbai campus that Colt Data Centre Services develops with RMZ under a joint venture with a stated US$1.7 billion investment plan for India. Announced on 15 October 2026, the 64 MW AI-ready facility moved from ground preparation, which began in December 2025, into building construction once the first hyperscale customer signed; Colt and RMZ describe it as fully pre-let but have not named the tenant, a completion date or the project cost. The design pairs air cooling with direct-to-chip liquid cooling and a closed-loop system intended to produce near-zero cooling wastewater. Power comes from a 220 kV GIS substation on the campus, supply is stated as 100% renewable, and connectivity is carrier neutral. Once built, Mumbai 3 lifts the campus to 86 MW of operational capacity against a full-development potential of up to 148 MW, according to the operators. It targets hyperscalers and neocloud providers that need dense GPU halls in one of India's main cloud and subsea-cable gateway markets.
- ▮64 MW AI-ready building, announced as fully pre-let to a first hyperscale customer
- ▮Hybrid air and direct-to-chip liquid cooling with closed-loop water design
- ▮Campus rises to 86 MW with Mumbai 3, up to 148 MW at full development
- ▮220 kV GIS substation on campus; supply stated as 100% renewable
- ▮Completion date and tenant not disclosed
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Data release:
More data centers in Navi Mumbai
| Facility | Operator | Power, MW | Tier | Status |
|---|---|---|---|---|
| Colt DCS Mumbai 3 | Colt DCS | 64 | — | Under construction |
| Sify Rabale Data Center Campus (Tower 5) | Sify Technologies | 43 | 3 | Operational |
| Yotta NM1 | Yotta Data Services | — | IV | Operational |
| Equinix MB4 | Equinix | — | — | Operational |
| NTT Navi Mumbai Data Center | NTT Global Data Centers | 30 | — | Operational |
| Iron Mountain MUM-1 | Iron Mountain | 2.3 | — | Operational |
Source — Verified against operator sources · data pending on-site verification