The fully pre-let facility is part of a $1.7 billion joint venture investment and will run on 100% renewable energy.
Colt Data Centre Services (Colt DCS) and RMZ have begun construction of Mumbai 3, a 64MW AI-ready data centre at their Navi Mumbai campus, as demand for hyperscale infrastructure and AI computing capacity accelerates. The facility has secured its first hyperscale customer and is fully pre-let.
The project forms part of the companies’ $1.7 billion joint venture announced in 2024 to develop data centre capacity in India. The partnership aims to build 250MW across Mumbai and Chennai.
“ Mumbai 3 is designed to address these needs, further strengthening our Navi Mumbai Campus as a scalable and future-ready digital infrastructure platform,” said Pratap Mane, Country Head, DCS India, Colt DCS, highlighting the facility’s focus on high-density deployments, liquid cooling and enhanced power infrastructure.
The new facility will combine conventional air cooling with direct liquid-to-chip cooling to support demanding AI and high-performance computing workloads. A 220kV gas-insulated substation on campus will provide additional power resilience and scalability, while carrier-neutral connectivity will offer access to high-capacity fibre routes.
“AI-ready infrastructure is becoming critical as hyperscalers demand greater power capacity and higher rack densities.”
“ The next wave of digital growth will be driven by infrastructure that brings together scale, resilience, and speed to market,” said Deepak Chhabria, President, RMZ Digital Infrastructure.
Sustainability is another key component of the project. Mumbai 3 will operate entirely on renewable energy and use a closed-loop cooling system designed to enable near-zero wastewater from cooling operations. The development is expected to generate more than 700 jobs across construction and operations, while creating opportunities for local suppliers and service providers.
Mumbai 3 will join the existing Mumbai 1 and Mumbai 2 facilities. Once completed, it will increase the campus’s operational capacity to 86MW, with potential for expansion to 148MW as the broader site develops. The project strengthens the partners’ push to build scalable digital infrastructure for India’s growing AI economy.