West Bengal counts 17.08 MW of operating data centre capacity across 242 records covering the whole country. Two buildings produce it: CtrlS Kolkata DC 1 at 16 MW and Sify Kolkata 01 at 1.08 MW, which opened in September 2000 as India’s first commercial data centre. Sify Kolkata 02, the operator’s second site in the state, is listed as an upcoming AI Edge facility with a programme ceiling of up to 4.8 MW and nothing else published. At that ceiling it would add 28% to the state’s counted operating capacity — a single unbuilt edge site is worth more than a quarter of everything West Bengal can currently evidence. That is not a compliment to Kolkata 02. It is a measure of how little has been built in a state of a hundred million people, and how thin the disclosure is for what is coming.
1At a glance
2Kolkata's counted 17.08 MW
| Record | MW | Tier | Counted |
|---|---|---|---|
| CtrlS Kolkata DC 1 | 16.00 | Operating | Yes |
| Sify Kolkata 01 | 1.08 | Operating | Yes |
| STT GDC Kolkata 1 | 3.00 | Pipeline | Counted, stage unverified |
| STT GDC Kolkata 2 | 6.00 | Pipeline | Counted, stage unverified |
| NTT Kolkata 1A | 6.40 | Pipeline | Counted, planned |
| Counted, all tiers | 32.48 | — | — |
| CtrlS Kolkata campus | 60.00 | Ceiling | No — container |
| NTT Kolkata 1 campus | 25.00 | Ceiling | No — container |
| STT GDC Kolkata portfolio | 9.00 | Ceiling | No — container |
| Yotta West Bengal hyperscale park | 250.00 | Unknown | No — unverified |
| Nxtra Kolkata East India DC | Not published | Unknown | No — no capacity |
Three buildings out of twelve records are operating. The state has one hyperscale facility that anyone can point at — CtrlS Kolkata DC 1 at 16 MW — and one that is a quarter-century old and runs at 1.08 MW. Everything else is announced.
The 250 MW Yotta park is the largest single number attached to West Bengal and it carries an UNKNOWN additive flag: no site, no schedule, no phase split. It is excluded here, and it would be irresponsible to include it. A quarter of a gigawatt in a state that currently evidences seventeen megawatts is a claim that requires a planning approval before it requires a spreadsheet.
3What 4.8 MW would do to West Bengal
| Measure | Today | If Kolkata 02 lands at its ceiling | Change |
|---|---|---|---|
| West Bengal operating capacity | 17.08 MW | 21.88 MW | +28.1% |
| West Bengal total, all tiers | 32.48 MW | 37.28 MW | +14.8% |
| Sify's West Bengal footprint | 1.08 MW | 5.88 MW | 5.4× |
| Sify's counted national capacity | 155.09 MW | 159.89 MW | +3.1% |
| West Bengal share of national operating capacity | 2.3% | 2.9% | +0.6 points |
One unbuilt 4.8 MW edge site is worth 28% of everything West Bengal can currently evidence. That sentence is the reason this record is worth a page at zero megawatts.
It also sets the ceiling on what the edge programme can mean for the state. Sify has said it plans 10 to 12 edge sites nationally. If one of them is in Kolkata at 4.8 MW, West Bengal’s data centre capacity grows by a quarter — and the state still would not be in India’s top five. The edge programme is real infrastructure and it is not a regional development policy.
West Bengal: 17.08 MW operating, 32.48 MW counted across all stages, about 95 MW published.
Kolkata 01 has been running since September 2000 — India’s first commercial data centre — and it is 1.08 MW, roughly what a single modern AI rack draws in three hours at 130 kW and a full year at that rate.
The comparison is not a criticism of a 2000-vintage facility. It is the clearest illustration in this registry that India’s data centre capacity is concentrated in four cities and that everywhere else, twenty-six years later, is still waiting for its second building.
4From Kolkata 01 to Kolkata 02: 26 years, 4.4 times
- Sify Kolkata 01 opens. India’s first commercial data centre. Carrier-neutral, 1.08 MW, and still operating.
- No second Sify site in the state. CtrlS and NTT build in Bengal Silicon Valley and New Town instead.
- Sify lists Kolkata 02 as an upcoming AI Edge data centre. No capacity, date or capital published.
- Sify reports two edge sites under construction nationally, and an edge plan of 10 to 12 sites. It does not name them.
- A 4.8 MW ceiling, 4.4 times the capacity of the building that preceded it by twenty-six years.
The generational comparison is the point. A site built in 2000 at 1.08 MW and a site planned for 2026 at up to 4.8 MW is not a story about Sify. It is a story about how slowly Indian data centre capacity has reached anywhere outside Mumbai, Chennai, Bengaluru, Hyderabad and Noida.
India’s declared national capacity is 2,236 MW announced against 778.69 MW operating. West Bengal’s ratio is worse than the national one: 15.4 MW announced against 17.08 MW operating, and the announced figure includes a 250 MW park with no site.
5The state's other 78 MW
West Bengal is the clearest case in the registry of a state that publishes a plausible number and evidences almost none of it. Roughly 78 MW is published across three campus and portfolio claims — CtrlS at 60, NTT at 25, STT GDC at 9 — and 25 MW of it reaches the counted total, all of it in the pipeline tier for want of a stage confirmation.
| Claim | MW | What happens to it |
|---|---|---|
| CtrlS Kolkata, four-phase campus | 60.0 | Campus is a ceiling; only DC 1 at 16 MW has a building record, and that is counted operating |
| NTT Kolkata 1 campus | 25.0 | Campus is a ceiling; only 1A at 6.4 MW has a building record |
| STT GDC Kolkata portfolio | 9.0 | Portfolio is a ceiling; buildings of 3 and 6 MW count as pipeline |
| Yotta West Bengal hyperscale park | 250.0 | UNKNOWN; excluded pending evidence |
| Sify Kolkata 01 | 1.08 | Operating, counted |
| Sify Kolkata 02 | ≤4.8 | Upcoming, no published capacity, excluded |
The lesson is mechanical. A state is not poorly covered because nobody published; it is poorly covered because the published figures are aggregates and the buildings underneath them have no records. This registry holds the campus and counts the building. West Bengal’s campus claims are large and its building records are three.
6Why West Bengal counted almost nothing until now
Before the reconciliation of 26 October 2026, West Bengal’s counted capacity was 1.08 MW — Sify Kolkata 01, and nothing else. Every other record in the state was flagged non-additive, including the 16 MW building that is the state’s only hyperscale facility.
| Measure | Before | After | Change |
|---|---|---|---|
| Operating capacity counted | 1.08 MW | 17.08 MW | +16.00 MW |
| Total counted, all tiers | 1.08 MW | 32.48 MW | +31.40 MW |
| Records counted | 1 | 5 | +4 |
| Counted as a share of published | 1.1% | About 34% | +33 points |
The change is not a revision of anybody’s facts. CtrlS Kolkata DC 1 has been 16 MW in this registry’s own master file since the file was created. It simply never entered a total, because the campus row and the building row were both marked non-additive — the double-counting guard applied to a building that had no counted sibling.
That defect ran across 45 container records and 1,186 MW of recovered capacity nationally. West Bengal was its worst case: a state with a hundred million people and one megawatt to show for it.
7What would change this record
| Fact needed | Effect | Where it would come from |
|---|---|---|
| A stated capacity | Up to 4.8 MW moves from excluded to counted | Operator announcement or a West Bengal single-window clearance |
| A site, substation or land parcel | Confirms the facility is physical | West Bengal Industrial Development Corporation land allocation |
| A launch date | Moves the record from announced to building | Operator statement or ground-breaking coverage |
| A named customer | Converts a plan into revenue | Joint announcement or colocation disclosure |
The record stays at zero until two of those exist. The registry does not credit a site with its product ceiling, and it should not: if it did, twelve announced Sify edge sites would add 57.6 MW to a national total on the strength of a marketing sentence.
8Sources
Sources: Sify Technologies AI Edge data centre page, listing Kolkata 02 as upcoming with the 4.8 MW IT capacity ceiling; Sify Technologies data centre index; Sify neocloud infrastructure page; the Sify integrated report for 2025; a technology trade publication report of July 2026 on the earnings call, the two delivered edges and the 10 to 12 site plan; Gridvik record PRJ-228 for Sify Kolkata 01, including its September 2000 opening and 1.08 MW capacity; Gridvik record PRJ-089 and PRJ-090 for the CtrlS Kolkata campus and DC 1; Gridvik records PRJ-133 to PRJ-135 and PRJ-176 to PRJ-177 for the STT GDC and NTT Kolkata portfolios. No capacity, capital or customer figure has been published for Sify Kolkata 02. Record verified 26 October 2026.