Between the 1991 and 2011 censuses, Bengaluru added 5.92 million new town residents across 16 subdistricts — roughly the size of Hyderabad, dropped into one metro region. 88% of that growth landed inside the BBMP urban core. The map below shades each subdistrict by absolute people added 1991 → 2011, with the BBMP boundary, the Outer Ring Road, 271 OpenStreetMap industrial-landuse parcels, and 11 named IT / industrial clusters laid on top so the answer to "why here?" stays visible.
Designated town population across these 16 subdistricts rose from 3.90 M to 9.82 M. 88% of that growth landed inside the BBMP urban core — the city absorbed almost everyone.
North 1.79 M, South 1.76 M, East 1.73 M — far more than any single peripheral taluk. Together the three BBMP taluks absorbed 5.19 M people, the bulk of the metro's growth.
Only +140,212 people on a small base (24,938 → 165,150). Electronic City, Bommasandra industrial estate, and Sarjapur Road drove that explosion — but in absolute terms most new residents went to the city, not the satellite.
Every fast-growing subdistrict sits on an IT/industrial cluster or a national highway. The BBMP core caught the ITPL / ORR / Manyata corridor; Anekal caught Electronic City; Hosakote, Nelamangala, and Devanahalli caught the KIADB belts on NH-75, NH-48, and the airport road.
Same subdistricts, now ranked by 1991 → 2011 multiplier (restricted to taluks with a 1991 base above 1 000). Anekal sits on top because Electronic City turned a 25k-person taluk into a 165k-person one. The BBMP core's 1.5–1.6× looks tame here, but it's a 1.6× on a million-person base — which is why the map above looks the way it does.
Across these 16 subdistricts, designated town population rose from 3,898,923 in 1991 to 9,818,259 in 2011 — a 152% increase in two decades.
Sources. Population: SHRUG v2.1 "Pakora"
Town Directory 2011, subdistrict level
(pc11_td_tot_p_1991, pc11_td_tot_p_2011).
The Bangalore Urban district's BBMP urban-agglomeration aggregate
(~3.3 M in 1991, ~8.5 M in 2011) is split evenly across its three
urban taluks — North, South, East. Anekal sits in the same district
but outside BBMP, so its town-population figure stands alone.
Subdistrict polygons from datta07/INDIAN-SHAPEFILES.
BBMP municipal boundary from datameet/Municipal_Spatial_Data
(243 wards dissolved into one outline). Industrial / IT cluster
layer: OpenStreetMap via Overpass API —
271 landuse=industrial parcels above ~6 ha,
plus 11 hand-coded named-cluster anchors (Electronic
City, ITPL, Manyata, Embassy Tech Village, Hebbal, BIAL Aerospace
Park, Bidadi, KIADB Doddaballapur / Nelamangala / Hosakote).
ORR ring is approximate.