BBMP Rajakaluve Maps

BBMP Rajakaluve / Storm Water Drain Maps

Updated for 2026: Some details from the original 2016 post have changed — one of the source links had gone dead, and we’ve added the actual interactive lookup tools plus current context on buffer zone rules and enforcement. Here’s what’s still accurate and where to check today.

Check Your Property Directly: Interactive Lookup Tools

If you just want to check a specific survey number against Rajakaluve/storm water drain data, these are the two direct tools to use — start here before digging into the raw archive data further down this page:

  • rajakaluve.org — built by IIM Bangalore’s Real Estate Research Initiative (IIMB-RERI) in partnership with BBMP. Search using your property’s survey number, village, hobli and taluk (from your registration documents) to check drain status directly. This is the closest thing to an official government-backed lookup tool for this. Note: it’s survey-based, so you’ll need those details on hand before searching.
  • MapsHalli — a citizen-run, more visually browsable alternative. Overlays BBMP survey maps and IIMB-RERI drain data on a Google Maps-style interface, so you can browse visually if you don’t have exact survey details yet. Not a government service, but built from the same underlying BBMP/revenue survey data.

Cross-check both if the result matters to you — they draw on overlapping but not identical data, and neither replaces an official BBMP confirmation for anything you’re about to act on financially.

BBMP GIS Portal

BBMP’s own GIS map layer shows stormwater drains and their buffer lines directly, letting you cross-check a survey number against the official drain layout.

Buffer Zone Rules (2026)

Rajakaluve buffer zones are legally enforced under the Revised Master Plan (RMP-2015) and National Green Tribunal directives — no-construction zones apply around all drains, with the exact setback depending on drain classification:

  • Primary drains (lake-to-lake / river flows) — largest buffer
  • Secondary drains (feeding lakes or primary drains) — medium buffer
  • Tertiary drains (feeding secondary drains) — 5 meters from the edge on either side is the commonly cited minimum

Always confirm the exact setback for your specific drain classification with BBMP’s Storm Water Drains (SWD) division — buffer distances vary by drain category and can change with local notifications.

Original BBMP Raw Survey Data (2016, still available)

BBMP’s original raw survey maps — organized into Bangalore East, Bangalore North, and Bangalore North Add, further broken down by village — are still the authoritative source of record, though the documents are in Kannada and not optimized for web viewing. If a storm water drain passes through a specific survey number, the filename includes that survey number. Some village-level folders also include a village map giving a rough idea of the drain layout. These are best used to cross-verify what the tools above show you, not as your primary lookup method.

Karnataka Land Records Portal — the current home for BBMP’s survey/SWD document archive (the original direct-IP links from 2016 now redirect here).

Sample: Village Map of Bhattarahalli
Sample: Village Map of Bhattarahalli, showing the level of detail available in BBMP’s raw survey folders.

BBMP has separately hosted more detailed information for survey numbers affected by its ongoing encroachment drive, including exact drain measurements.

Sample: BBMP SWD Drawing
Sample: a BBMP storm water drain (SWD) drawing with exact measurements and survey number details.

Why This Matters for Buyers

Bangalore has an active, ongoing enforcement drive against Rajakaluve encroachments — a recent BBMP survey found over 1,100 stormwater drain encroachments citywide, concentrated in Mahadevapura, Yelahanka, Dasarahalli, Bommanahalli, and East zones. If you’re buying a plot or property in these zones especially, checking Rajakaluve status before purchase is a genuinely important step, not just a formality — properties found to be on encroached drain land have faced demolition action.

Bottom line: use rajakaluve.org or MapsHalli for a first check, then get an official NOC/verification from BBMP’s SWD division before finalizing any purchase near a drain — don’t rely solely on any third-party map, including this page.

If you’re specifically wondering about a plot in Varthur, Whitefield, Horamavu, or along Sarjapur Road — the areas we get asked about most in the comments below — see our step-by-step guide to checking your survey number by area.

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