STT Chennai 2
OperationalAmbattur, Chennai, Tamil Nadu
STT Chennai 2 is a data center (TIA-942 Rated 3, certified) in Chennai (Ambattur), India, operated by ST Telemedia Global Data Centres (India), with 26 MW of published IT capacity, currently operational.
STT GDC's largest Chennai building, in the Ambattur cluster, LEED Gold and TIA-942 Rated 3 certified with six-layer security and on-site water storage.

- Operator
- ST Telemedia Global Data Centres (India)
- City
- Chennai (Ambattur), India
- Power, MW
- 26 MW
- Cooling
- Air
- TIA-942 Rated
- 3 · certified
Coloprice Score
48 out of 100
Class D · #18 of 125 in India
- Resilience20/35
- Compliance4/20
- Transparency6/20
- Scale11/15
- Maturity7/10
Connectivity: 7 networks and 1 internet exchanges are present in this facility. Source: PeeringDB →
Awards & badges
Earned from the rankings — position in the country, city, category and worldwide lists, plus score axes at their maximum. Free to embed on the operator's site; each badge links back to the list that certifies it.
STT Chennai 2 anchors ST Telemedia Global Data Centres' Ambattur campus in Chennai, the operator's largest single building in the city at 26 MW of IT load. The operator markets it as India's largest data centre in a production environment, though that claim reflects STT GDC's own positioning rather than an independently audited ranking. The facility holds both LEED Gold certification for its environmental design and TIA-942 Rated 3 for its infrastructure resiliency, a certification pairing not every Chennai colocation site carries. Physical security runs six layers deep with round-the-clock monitoring, and the site keeps 2.7 million litres of water in on-site storage for cooling and fire systems, a scale of reserve capacity aimed at multi-day operational continuity. STT Chennai 2 sits alongside three sister buildings on the same Ambattur cluster (Chennai 1, 3 and 4), part of a broader INR 4,200 crore, roughly 130 MW multi-campus expansion the operator has announced across Ambattur and its separate Siruseri site in Chennai.
- ▮26 MW IT load, STT GDC's largest single Chennai building
- ▮LEED Gold and TIA-942 Rated 3 certified
- ▮Six-layer 24/7 physical security
- ▮2.7 million litres of on-site water storage
- ▮Part of a four-building Ambattur cluster within a ~130 MW, INR 4,200 crore Chennai expansion
Colocation pricing: India & other markets — The Colocation Price Index →
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