Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Basavanapura Kere

ಬಸವನಪುರ ಕೆರೆ

Also called Basavanapura Pond

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

See it on the map
Size
4.77 acresAbout 2.7 football pitches
Rank by size
1037th largestOf 1,621 lakes that still exist
Valley
Koramangala-Challaghatta
Who looks after it
BBMPBruhat Bengaluru Mahanagara Palike
Water quality
Fit only for irrigationTested Jul 2026
Built over
0% of the lakeSatellite, 2021. The 2018 survey found 1% encroached.

Through the years

Nothing on record for 1905 to 1944, 1946 to 1979 and 1981 to 1983.

The records listed below, drawn on one line from 1904 to 2026.

  1. 1904

    Built

    As the 2018 lake survey records it

    See source

  2. 1945

    On the survey map

    See source

  3. 1980

    Not on the survey map

    See source

  4. 1984-2021

    Held water most years

    Water in 13% of all satellite passes, 1984-2024

    4% of its water area has since gone dry; 29% is new water

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

    See sourceSee source

  5. 2017-2018

    In the water bodies census, not marked as encroached

    This census's status marks are often wrong

    See source

  6. 2017-2025

    Mostly built on or bare from 2019

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

    See source

  7. 2018

    Still there in the 2018 lake survey

    1% encroached, clean, 7.85 acres surveyed

    See source

  8. 2023-2026

    Tested by the state board in 34 months, most often fit only for wildlife and fish

    Jul 2023 to Jul 2026

    See every testSee source

  9. 2024

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

    See source

  10. 2025-2026

    Mostly open water after the monsoon; mostly dry or built in the dry season

    After monsoon, Oct 2025 to Dec 2025

    • 78% open water
    • 10% floating weed
    • 12% dry or built

    Dry season, Mar 2026 to May 2026

    • 20% open water
    • 3% floating weed
    • 77% dry or built
    See source

How big it is

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

Drawn outline
4.77 acres

About 2.7 football pitches

See source
2018 lake survey
7.85 acres

About 4.4 football pitches

See source
End to end
244 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 irrigation

Fit only for irrigation, cooling and waste disposal. Class E on the state board’s scale from A, the cleanest, to E.

Tested Jul 2026

See source
Class each month, tested 34 times since Jul 2023
Fit only for wildlife and fish: 28 months. Fit only for irrigation: 6 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
What pollutes it, 2018

Sewage & human defecation

See source
Sewage flows in, 2018

From the east

See source
Older tests
2 readings

From 2021

See 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

MeasureUnitValue
Water temperature°C25
Dissolved oxygenmg/L1.4
pH6.5
ConductivityµS/cm384
BODmg/L19
Nitratemg/L as N1.5
Faecal coliformMPN/100mL470
Total coliformMPN/100mL2,800
Bicarbonatemg/L76
TurbidityNTU19.2
Total alkalinitymg/L as CaCO376
Chloridemg/L52
CODmg/L176
Kjeldahl nitrogenmg/L as N17.3
Ammonia nitrogenmg/L as N16.8
Total hardnessmg/L as CaCO392
Calcium hardnessmg/L as CaCO348
Calciummg/L19.2
Magnesium hardnessmg/L as CaCO344
Magnesiummg/L10.7
Sulphatemg/L17
Sodiummg/L37
Dissolved solidsmg/L260
Suspended solidsmg/L24
Phosphatemg/L0.72
Potassiummg/L7
Fluoridemg/L0.22
Sodium share%44
Sodium adsorption ratio1.69
Orthophosphatemg/L2.08

Every month the state board tested it

MonthClassDissolved oxygenmg/LBODmg/LFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
Jul 2026E1.4194702,800See source
Jun 2026D5.444803,500See source
May 2026E1.3149402,800See source
Apr 2026D5102,7007,900See source
Mar 2026D5.4626,00063,000See source
Feb 2026D5.853303,500See source
Jan 2026D553,30012,000See source
Dec 2025D6.442403,500See source
Nov 2025D5.963104,300See source
Oct 2025D4.682202,400See source
Sep 2025D64261,600See source
Aug 2025E2.3203202,200See source
Jul 2025D4.892103,500See source
Jun 2025D5.2102,1009,400See source
May 2025D5.25431,600See source
Apr 2025D5.352201,200See source
Mar 2025D5.859304,900See source
Feb 2025D742101,700See source
Jan 2025E251705,400See source
Dec 2024D4.451703,500See source
Nov 2024D4.641703,500See source
Oct 2024E2.4173,10017,000See source
Sep 2024E1.5202609,200See source
Aug 2024D5.762,60011,000See source
Jul 2024D4.452,10011,000See source
Jun 2024D4.291,3004,900See source
Mar 2024D4.4811,00033,000See source
Feb 2024D4.3112,60011,000See source
Jan 2024D647,00054,000See source
Dec 2023D5.755809,200See source
Oct 2023D5.754,30092,000See source
Sep 2023D577,00092,000See source
Aug 2023D5.754,00054,000See source
Jul 2023D5.466,30054,000See source

Older tests

DateWhereReadingWater temperature°CDissolved oxygenmg/LpHConductivityµS/cmBODmg/LNitrate and nitritemg/L as NFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
2021Basavanapura Lake, LakeLowest254.46.520940.73,30024,000See source
2021Basavanapura Lake, LakeHighest256.58.11,19493.21,40,0005,40,000See source

Inlet and outlet tests, 2017-18 lake survey

DateWhereWater temperature°CpHConductivityµS/cmDissolved solidsmg/LSuspended solidsmg/LTurbidityNTUDissolved oxygenmg/LCODmg/LBODmg/LTotal phosphateKjeldahl nitrogenmg/L as NTotal coliformMPN/100mL
2018-01-1026.47.443435419010.21800.490.85.6300
See source

How much is built over

Built inside the outline
0%

From satellite land cover, 2021

See source
Encroached area, 2017
0.26 acres

Reported by the state legislature’s committee on lake encroachment

See source
Encroached by

The public, government agencies and farmers

See source
Taken for

House, road, temple & eucalyptus plantation

See source
Where it is encroached

On the west, north-west and south side

See source
Dumped in it

Construction debris, garbage dump

See source
Land within 500 m

56% built, 32% trees, 6% crops, 3% grass, 2% shrubs, 1% bare ground

From satellite land cover, 2021

See source

Who looks after it

Looked after by
Bruhat Bengaluru Mahanagara Palike

BBMP

See source
City lake page

Open its page on the city’s lake monitoring site

See source

Where its water comes from and goes

Valley
Koramangala-Challaghatta

The river basin its water drains to

See source
Overflows into

Gottigere Kere

See source
Catchment
1 km²

The land that drains into it

See source
Fed by, 2018 survey

Rain

See source
Built parts, 2018 survey

3 inlet drains, 1 overflow weir, 1 sluice gate, no culverts, no check dams and no islands

See source
Nearest sewage treatment plant

Hulimavu 10MLD Sewage Treatment Plant

2.8 km away, treats 10 million litres a day

See source

What lives here

Birds recorded
35 species

Most seen: White-throated Kingfisher, Common Myna, Blyth's Reed Warbler, Purple Heron and Indian Pond-Heron.

90 sightings, mostly from birdwatchers

See source
All wildlife recorded
42 species

97 records, 2023 to 2025

See source
Photographed on iNaturalist
17 times

7 species, 7 confirmed by other naturalists.

Most seen: Giant Honey Bee, Asian Common Toad, Laglaise's Garden Spider, Red Weaver Ant-mimicking Spider and Longhorn Crazy Ant.

Last seen Nov 2025

See source
Animals seen, 2018 survey

Birds, butterflies and dragonflies

See source
Water plants, 2018 survey

Emergent and rooted floating

See source
Weed cover, 2018 survey

Partial

See source

Around it

Around it in 2018

Plantation, settlement, temple & church

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Ward 38
Doddakammanahalli

ದೊಡ್ಡಕಮ್ಮನಹಳ್ಳಿ

Bengaluru South corporation, Bangalore South assembly seat

See source
Village
Basavanapura (F)

Begur hobli, Bengaluru South taluk, Bengaluru Urban district

See source
Land survey numbers

14

See source
Height above sea level
927 m
See source
Coordinates

12.8448° N, 77.5893° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
101
2018 lake survey
BUBSBGbvp_kr1-1403
Lake Development Authority
LDA036
KGIS tank map
1022
Water bodies census
2/12/002/276600/1302864/009
City lake monitoring site
97