Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Haraluru Kere

ಹರಳೂರು ಕೆರೆ

Also called Lakedew Appartment lake, Haralur Lake

Kere, a large tank, in Kasavanahalli ward, Bengaluru South

See it on the map
Size
21.3 acresAbout 12 football pitches
Rank by size
424th largestOf 1,621 lakes that still exist
Valley
Koramangala-Challaghatta
Who looks after it
BBMPBruhat Bengaluru Mahanagara Palike
Water quality
Fit only for wildlife and fishTested Jul 2026
Built over
1% of the lakeSatellite, 2021. The 2018 survey found 1% encroached.
Campaign
Residents are organising here

Through the years

Nothing on record for 1946 to 1954, 1957 to 1979 and 1981 to 1983.

The records listed below, drawn on one line from 1945 to 2026.

  1. 1945

    On the survey map

    See source

  2. 1955

    On the U.S. Army map

    Compiled from Survey of India maps of 1945-46

    See source

  3. 1956

    Built

    As the 2018 lake survey records it

    See source

  4. 1980

    On the survey map

    See source

  5. 1984-2021

    Held water every year

    Water in 15% of all satellite passes, 1984-2024

    0.9% of its water area has since gone dry; 40% is new water

    31 years not counted: the satellite saw under half the lake

    Floating weed looks like dry land to this record, so a weed-covered year can read as dry

    See sourceSee source

  6. 2017-2018

    In the water bodies census, not marked as encroached

    This census's status marks are often wrong

    See source

  7. 2017-2025

    Mostly water every year

    About three in four of these readings are right, so trust what holds for several years

    See source

  8. 2018

    Still there in the 2018 lake survey

    1% encroached, clean, 34.2 acres surveyed

    Restored, year not recorded

    See source

  9. 2023-2026

    Tested by the state board in 36 months, most often fit only for wildlife and fish

    Jul 2023 to Jul 2026

    See every testSee source

  10. 2024

    On the state's list of Bengaluru lakes, looked after by BBMP

    See source

  11. 2025-2026

    Mostly open water after the monsoon and in the dry season

    After monsoon, Oct 2025 to Dec 2025

    • 54% open water
    • 44% floating weed
    • 3% dry or built

    Dry season, Mar 2026 to May 2026

    • 92% open water
    • 3% floating weed
    • 6% dry or built
    See source

How big it is

The records disagree on its size, so each measure is shown.

Drawn outline
21.3 acres

About 12 football pitches

See source
Land records
27.3 acres

About 15 football pitches

See source
2018 lake survey
34.2 acres

About 19 football pitches

See source
End to end
577 m

The longest straight line across the outline

See source
Deepest point, 2018
3 m
See source
Kind of lake
Kere, a large tank
See source

How clean the water is

Latest test
Fit only for wildlife and fish

Fit only for wildlife and fisheries. Class D on the state board’s scale from A, the cleanest, to E.

Tested Jul 2026

See source
Class each month, tested 36 times since Jul 2023
Fit only for wildlife and fish: 19 months. Fit only for irrigation: 17 months. Every month is listed in the readings below.
Drinkable after disinfection
Fit for bathing
Drinkable after treatment
Fit only for wildlife and fish
Fit only for irrigation
See source
How it looked in 2018
Clean
See source
Older tests
3 readings

From 2015 and 2021

See sourceSee source
Inlet and outlet tests, 2017-18
1 readings
See source
Every reading
Show every reading

Latest test, Jul 2026. Too low to measure: boron, carbonate, nitrite, phenolphthalein alkalinity, phosphate, kjeldahl nitrogen

MeasureUnitValue
Water temperature°C24
Dissolved oxygenmg/L5.5
pH6.8
ConductivityµS/cm783
BODmg/L6
Nitratemg/L as N2.9
Faecal coliformMPN/100mL940
Total coliformMPN/100mL2,200
Bicarbonatemg/L128
TurbidityNTU18.8
Total alkalinitymg/L as CaCO3128
Chloridemg/L184
CODmg/L72
Ammonia nitrogenmg/L as N0.4
Total hardnessmg/L as CaCO3132
Calcium hardnessmg/L as CaCO368
Calciummg/L27.2
Magnesium hardnessmg/L as CaCO364
Magnesiummg/L15.6
Sulphatemg/L39
Sodiummg/L79
Dissolved solidsmg/L540
Suspended solidsmg/L24
Potassiummg/L8
Fluoridemg/L0.41
Sodium share%55
Sodium adsorption ratio3
Orthophosphatemg/L0.3

Every month the state board tested it

MonthClassDissolved oxygenmg/LBODmg/LFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
Jul 2026D5.569402,200See source
Jun 2026D5.555804,300See source
May 2026E1.1233801,500See source
Apr 2026D4.463,40013,000See source
Mar 2026D4.282,5005,800See source
Feb 2026D6.943905,400See source
Jan 2026E2.6204304,300See source
Dec 2025E392403,500See source
Nov 2025E2.62631,0001,10,000See source
Oct 2025E3.1143904,300See source
Sep 2025D5.863102,800See source
Aug 2025D5.463302,800See source
Jul 2025E2.626932,400See source
Jun 2025D4.9142603,500See source
May 2025D592101,400See source
Apr 2025E2.9182604,300See source
Mar 2025D5.496,30035,000See source
Feb 2025D5.952,20013,000See source
Jan 2025E2.8151703,500See source
Dec 2024E3.3233,1004,800See source
Nov 2024E3.2253102,100See source
Oct 2024E1.9502,20024,000See source
Sep 2024E2.1222,40022,000See source
Aug 2024D642703,500See source
Jul 2024E1282,1004,800See source
Jun 2024D4.882203,500See source
May 2024D4.1141701,400See source
Apr 2024D642402,200See source
Mar 2024E3.2151,7004,600See source
Feb 2024E3.6182,20013,000See source
Jan 2024D4.3104,70028,000See source
Dec 2023E3.1164,60092,000See source
Oct 2023D4.584,80035,000See source
Sep 2023D5.4646,0003,50,000See source
Aug 2023E2176,30054,000See source
Jul 2023D5.444909,200See source

Older tests

DateWhereReadingpHConductivityµS/cmDissolved solidsmg/LDissolved oxygenmg/LWater temperature°CBODmg/LNitrate and nitritemg/L as NFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
2015-07-16Haralur Lake8.21,21060517.531.2See source
2021Haralakunte Lake, LakeLowest6.58121.22540.83,30024,000See source
2021Haralakunte Lake, LakeHighest8.41,2825.925305.323,0002,40,000See source

Inlet and outlet tests, 2017-18 lake survey

DateWhereWater temperature°CLight transparencycmpHConductivityµS/cmDissolved solidsmg/LSuspended solidsmg/LTurbidityNTUDissolved oxygenmg/LCODmg/LBODmg/LTotal phosphateKjeldahl nitrogenmg/L as NTotal coliformMPN/100mLSewage inflow
2017-12-04Inlet27.368.31,00050012104.1808273500.979
See source

How much is built over

Built inside the outline
1%

From satellite land cover, 2021

See source
Encroached area, 2017
0.40 acres

Reported by the state legislature’s committee on lake encroachment

See source
Encroached by

Government agencies

See source
Taken for

Road

See source
Where it is encroached

On the north-east side

See source
Dumped in it

Garbage

See source
Other problems noted

As per RTC, Plantation done by KFD

See source
Land record maps
See source
Land within 500 m

64% built, 18% trees, 11% crops, 4% shrubs, 2% grass

From satellite land cover, 2021

See source

Who looks after it

Looked after by
Bruhat Bengaluru Mahanagara Palike

BBMP

See source
City work on the lake
Developed
See source
City zone
Mahadevapura
See source
City lake page

Open its page on the city’s lake monitoring site

See source
Campaign pages
See source

Where its water comes from and goes

Valley
Koramangala-Challaghatta

The river basin its water drains to

See source
Water comes from
See source
Overflows into

Kasavanahalli Kere

See source
Catchment
5.7 km²

The land that drains into it

See source
Fed by, 2018 survey

Rain & drain

See source
Built parts, 2018 survey

3 inlet drains, 1 overflow weir, no sluice gates, 4 culverts, no check dams and 1 island

See source
Used for, 2018 survey

Fishing

See source
Nearest sewage treatment plant

250 KLD Water Reclamation Plant

2.8 km away, treats 0.25 million litres a day

See source

What lives here

Birds recorded
99 species

Most seen: Brahminy Kite, Indian Pond-Heron, Black Kite, Little Egret and Great Cormorant.

2,278 sightings, mostly from birdwatchers

See source
All wildlife recorded
124 species

2,310 records, 2012 to 2026

See source
Threatened species seen here
4
  • Spot-billed Pelican near threatened
  • Rufous-tailed Lark near threatened
  • Tawny Eagle vulnerable
  • Swan Goose endangered
See source
Photographed on iNaturalist
174 times

85 species, 101 confirmed by other naturalists.

Most seen: Little Cormorant, Great Cormorant, Indian Pond-Heron, Chequered Keelback and Brahminy Kite.

Last seen Aug 2026

See source
Animals seen, 2018 survey

Birds and fish

See source
Water plants, 2018 survey

Emergent

See source
Weed cover, 2018 survey

Partial

See source

Around it

Around it in 2018

Vacant land, layout, park, apartment, shed & Godown

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Ward 31
Kasavanahalli

ಕಸವನಹಳ್ಳಿ

Bengaluru South corporation, Mahadevapura assembly seat

See source
Village
Haralur

Varthuru hobli, Bengaluru East taluk, Bengaluru Urban district

See source
Land survey numbers

95

See source
Height above sea level
897 m
See source
Coordinates

12.8971° N, 77.6628° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
124
2018 lake survey
BUBEVRhrl_kr2-554
Lake Development Authority
LDA189
KGIS tank map
966
Water bodies census
2/12/002/276600/1302822/005
City lake monitoring site
197