BLR 3 at Hoskote is listed by Nxtra by Airtel at 6 MW of IT power across 1,000 racks — 6 kW a rack, with a declared PUE below 1.55. It is the smaller of two buildings on the same Hoskote site, and the denser of the two. Together the pair carry 20 MW across 3,800 racks, which makes Hoskote the larger of the operator’s two Bengaluru locations — in a town where the state now plans a 500 MW data park.
1At a glance
26 kW a rack
The two Hoskote buildings are the clearest pair in the registry, because they sit on one site, under one operator, at almost the same time, with a measurable difference between them.
| Facility | MW | Racks | kW a rack | PUE |
|---|---|---|---|---|
| BLR 3 — this building | 6 | 1,000 | 6.0 | below 1.55 |
| BLR 2 — Hoskote 1 | 14 | 2,800 | 5.0 | below 1.55 |
| DC2 | 20 | 4,000 | 5.0 | below 1.55 |
| BLR 1 — Whitefield | 5.4 | 2,000 | 2.7 | not published |
Six kilowatts against five is a 20% difference between two buildings on the same campus, which is small enough to be a specification choice rather than a generational change. Read across the four cards, though, and the pattern is consistent: every new Nxtra building outside Whitefield has landed between 5 and 6 kW a rack, while Whitefield sits at 2.7.
That cluster of numbers is itself the finding. The operator’s mainstream specification for a non-AI building is five to six kilowatts a cabinet. Its AI-grade halls at Mahape run at twice that. The gap between those two specifications is the gap between the capacity that exists and the capacity that AI demand is asking for.
2.7 kW at Whitefield. 5 to 6 kW at Hoskote and in the unnamed DC2 building. 11.5 kW at Mahape.
Three specifications, one operator, one country. Any single average across them is meaningless.
3The Hoskote pair
Two cards on one site are worth adding, because the sum is what a substation, a water allocation and a security perimeter are actually sized for.
| Measure | BLR 2 | BLR 3 | Combined |
|---|---|---|---|
| IT power | 14 MW | 6 MW | 20 MW |
| Racks | 2,800 | 1,000 | 3,800 |
| Average density | 5.0 kW | 6.0 kW | 5.3 kW |
| Facility load at PUE 1.55 | about 21.7 MW | about 9.3 MW | about 31 MW |
| Share of the Bengaluru cluster | 31% | 13% | 44% |
Twenty megawatts of IT load means roughly 31 MW of facility load at the published PUE — which is the number the electricity connection, the transformers and the cooling plant are built to. That is a substantial site, and it is 44% of the operator’s Bengaluru capacity.
The location is the strategic point. Hoskote is where Karnataka announced a 500 MW sustainable data park in April 2026, with solar from Pavagada and 60 MLD of treated water. Nxtra already has 20 MW in that town and did not mention the park in any public statement. Whether that is luck, foresight or coincidence is unknown — and it is the most interesting open question on this page.
4Timeline
- Nxtra develops two buildings at Hoskote, east of Whitefield, as its second Bengaluru location
- Karnataka announces a 500 MW sustainable data park near Hoskote among three parks totalling 1,000 MW
- Karnataka approves its Sustainable Data Centre Policy for 2026–31, targeting 1 GW of IT capacity by 2031
- The operator lists BLR 3 at 6 MW across 1,000 racks with a declared PUE below 1.55
- No commissioning date, occupancy figure or park participation statement has been published
5Limits and open questions
6Sources
Sources: Nxtra Bengaluru data centre page, Nxtra by Airtel site, DataCenterMap Bangalore listings, DataCenterHawk, Karnataka government data park announcements, ETDatacenters on the Karnataka policy.