STT Chennai Ambattur campus (Chennai 2, 3 and 4) is a data center project in Chennai, India, operated by STT GDC India. It is operational and expanding. It is planned for 58 MW of IT load. The operator reports 40 MW running.
Latest change on record: moved to expanding on 20 February 2026. Record last checked against its sources on 22 October 2026.
This project is built or running, so every gate counts as passed.
Build odds is ArusGrid's reading of the public record, not a forecast, a rating or advice. It counts the gates this project has passed in public sources. Private progress does not show, a passed gate can be undone, and projects that pass every gate still stop. The method has not yet been tested against outcomes. How it works.
How India approves, powers and taxes data centers is on Data center rules in India.
Chennai holds 16 active projects with 819 MW of planned IT load between them, and STT Chennai Ambattur campus (Chennai 2, 3 and 4) ranks 5th by planned capacity. Of those, 10 are operational, 1 is operational and expanding, 2 are under construction, 2 are at the land and permitting stage and 1 is announced only. Published colocation vacancy in Chennai was 24.2% as of June 2025. Vacancy excludes hyperscaler self-build.
STT GDC has 9 others in India and 15 projects elsewhere in the dataset tracked by ArusGrid, including STT GDC Bengaluru Devanahalli campus, STT GDC Pune campus (Dighi) and STT GDC Palava campus. It sits on the STT Ambattur campus. Named funding comes from ST Telemedia on the equity side. No user of the capacity is on the public record as of 2026-10-02, after a check of operator, landlord, contractor, regulator and lender documents. Most colocation leases are confidential, so this says nothing about occupancy.
The build is phased. Chennai 2 and 3 at 40 MW is operational; Chennai 4 at 18 MW is under construction. The dated record runs from operational on 1 February 2024 to operational and expanding on 20 February 2026. Power comes from CleanMax (Clean Max Enviro Energy Solutions) through a renewable power purchase agreement.
The US export control position for advanced AI chips in India, as of 27 September 2026, is recorded as “No US destination-based licence requirement as enforced”. ArusGrid holds 6 public sources for this project, the latest dated 4 July 2026, and last checked the record on 22 October 2026.
Running capacity. The site is operational or expanding. The rules are fixed and published on the Methodology page.
Operator markets Chennai 4 as AI-ready; no cooling or GPU disclosure.
This country carries no US destination-based licence requirement for advanced AI chips as the rules are enforced today. Access is a commercial matter between the project and its vendors. Criteria are published on the Methodology page.
No US destination-based licence requirement as enforced · No US destination-based licence requirement as enforced (2026-09-27) source
Checked on 2026-10-02. No user of this capacity is on the public record. ArusGrid read the operator's releases, the landlord's and contractors' exchange filings, regulator and lender documents and interconnection records. Most colocation leases are confidential, so this says nothing about occupancy.
No figure has been announced. This range is 58 MW of planned IT load times a published benchmark of US$6.64 per watt for Mumbai, plus or minus 15 percent, with 10 percent more at the top for liquid cooling because the project is AI-positioned. It covers the building and its mechanical and electrical plant. It excludes land, grid works, servers and fees.
Benchmark: Turner & Townsend Data Centre Construction Cost Index 2025, as reported by Data Storage Asia. An estimate is never added to any total on the site.
Platform capital spans several sites. It is never added to this project's own figure.
ArusGrid estimate, grade C. Published band for this country. Priced on the hyperscale band, which already reflects anchor deals. No usable capex for this site. Electricity unstated in the band. An estimate, never a quote, computed by fixed rules published on the Colo prices page and never counted in any total.
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