Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Gangondanahalli Kere

ಗಂಗೋಡನಹಳ್ಳಿ ಕೆರೆ

Also called Gangondanahalli Lake

Kere, a large tank, in Gangondanahalli village, Bengaluru North taluk

See it on the map
Size
38.4 acresAbout 22 football pitches
Rank by size
231st largestOf 1,621 lakes that still exist
Valley
Arkavathi
Who looks after it
ZPZilla Panchayat
Water quality
Fit only for irrigationTested Jun 2026
Built over
0.1% of the lakeSatellite, 2021. The 2018 survey found 15% encroached.

Through the years

Nothing on record for 1905 to 1913, 1915 to 1954, 1956 to 1973 and 1975 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. 1914

    Not on the survey map

    See source

  3. 1955

    On the U.S. Army map

    Compiled from Survey of India maps of 1945-46

    See source

  4. 1974

    On the survey map

    See source

  5. 1984-2021

    Held water most years

    Water in 23% of all satellite passes, 1984-2024

    34% of its water area has since gone dry; 0.5% is new water

    4 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. 2012

    Restored

    See source

  7. 2017-2018

    In the water bodies census, not marked as encroached

    This census's status marks are often wrong

    See source

  8. 2017-2025

    No one cover holds over half of it in most years

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

    See source

  9. 2018

    Still there in the 2018 lake survey

    15% encroached, clean, 63.8 acres surveyed

    See source

  10. 2023-2026

    Tested by the state board in 31 months, most often fit only for irrigation

    Aug 2023 to Jun 2026

    See every testSee source

  11. 2025-2026

    Mostly floating weed after the monsoon and in the dry season

    After monsoon, Oct 2025 to Dec 2025

    • 0% open water
    • 74% floating weed
    • 26% dry or built

    Dry season, Mar 2026 to May 2026

    • 0.1% open water
    • 57% floating weed
    • 43% dry or built
    See source

How big it is

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

Drawn outline
38.4 acres

About 22 football pitches

See source
2018 lake survey
63.8 acres

About 36 football pitches

See source
End to end
671 m

The longest straight line across the outline

See source
Deepest point, 2018
5 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 Jun 2026

See source
Class each month, tested 31 times since Aug 2023
Fit only for wildlife and fish: 12 months. Fit only for irrigation: 19 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
2 readings

From 2021

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

Latest test, Jun 2026. Too low to measure: boron, carbonate, nitrite, phenolphthalein alkalinity, sulphate, suspended solids

MeasureUnitValue
Water temperature°C30
Dissolved oxygenmg/L0.7
pH6.5
ConductivityµS/cm1,135
BODmg/L90
Nitratemg/L as N4
Faecal coliformMPN/100mL4,300
Total coliformMPN/100mL11,000
Bicarbonatemg/L248
TurbidityNTU5.7
Total alkalinitymg/L as CaCO3248
Chloridemg/L208
CODmg/L304
Kjeldahl nitrogenmg/L as N44
Ammonia nitrogenmg/L as N34
Total hardnessmg/L as CaCO3292
Calcium hardnessmg/L as CaCO3152
Calciummg/L61
Magnesium hardnessmg/L as CaCO3140
Magnesiummg/L34
Sodiummg/L107
Dissolved solidsmg/L760
Phosphatemg/L0.48
Potassiummg/L16
Fluoridemg/L0.54
Sodium share%43
Sodium adsorption ratio2.7
Orthophosphatemg/L1.3

Every month the state board tested it

MonthClassDissolved oxygenmg/LBODmg/LFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
Jun 2026E0.7904,30011,000See source
May 2026E2424,60012,000See source
Feb 2026E2314601,400See source
Jan 2026E652,60017,000See source
Dec 2025E5.9538920See source
Nov 2025D592,10013,000See source
Oct 2025D641102,400See source
Sep 2025E2.6141,10,00,00,0003,30,00,00,000See source
Aug 2025D6.552102,200See source
Jul 2025D5.1823280See source
Jun 2025D5.4617,00046,000See source
May 2025D5.6721,00046,000See source
Apr 2025D5.4121403,500See source
Mar 2025D4.349405,400See source
Feb 2025D5.711140940See source
Jan 2025E1.7191703,500See source
Dec 2024D5141401,400See source
Nov 2024D6.2102403,500See source
Oct 2024E2.2161703,500See source
Sep 2024D4.481103,500See source
Aug 2024E452,6009,400See source
Jul 2024E2.8302605,400See source
Jun 2024E3.2301202,400See source
May 2024E6027,00079,000See source
Apr 2024E0.87811,00046,000See source
Mar 2024E861,30,00,0003,30,00,000See source
Feb 2024E0.5296,30,00022,00,000See source
Jan 2024E633,1007,000See source
Dec 2023E513,10,00,00035,00,00,000See source
Oct 2023E727,00035,000See source
Aug 2023E1059,40054,000See source

Older tests

DateWhereReadingWater temperature°CDissolved oxygenmg/LpHConductivityµS/cmBODmg/LNitrate and nitritemg/L as NFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
2021Gangondana Halli Lake, Bengaluru North, LakeLowest250.3635950.74,60035,000See source
2021Gangondana Halli Lake, Bengaluru North, LakeHighest2567.53,010203139,40,00,00054,00,00,000See 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
2017-11-23Inlet22.58.498060052184.28017.2271,600
See source

How much is built over

Built inside the outline
0.1%

From satellite land cover, 2021

See source
Encroached area, 2017
11.9 acres

Reported by the state legislature’s committee on lake encroachment

See source
Encroached by

NICE

See source
Taken for

Nice road

See source
Where it is encroached

On the east side

See source
Dumped in it

Religious wastes

See source
Land within 500 m

27% crops, 27% built, 20% shrubs, 17% trees, 8% grass, 1% bare ground

From satellite land cover, 2021

See source

Who looks after it

Looked after by
Zilla Panchayat

ZP

See source

Where its water comes from and goes

Valley
Arkavathi

The river basin its water drains to

See source
Water comes from
See source
Overflows into

Lakkenahalli Kere

See source
Catchment
8.2 km²

The land that drains into it

See source
Fed by, 2018 survey

Rain

See source
Built parts, 2018 survey

2 inlet drains, 1 overflow weir, 1 sluice gate, 2 culverts and 6 islands

See source
Used for, 2018 survey

Irrigation and fishing

See source

What lives here

Birds recorded
64 species

Most seen: Indian Pond-Heron, Black Kite, Gray Heron, Spot-billed Pelican and Brahminy Kite.

434 sightings, mostly from birdwatchers

See source
All wildlife recorded
64 species

434 records, 2009 to 2024

See source
Threatened species seen here
2
  • Spot-billed Pelican near threatened
  • Indian Roller near threatened
See source
Animals seen, 2018 survey

Snails, birds, butterflies and dragonflies

See source

Around it

Around it in 2018

NICE Rd, granite factory, duck farm, agriculture

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Greater Bengaluru
Outside the city limits
See source
Village
Gangondanahalli

Dasanapura hobli, Bengaluru North taluk, Bengaluru Urban district

See source
Land survey numbers

41 (Gangondanahalli), 110, 138 (Karihobanahalli)

See source
Height above sea level
869 m
See source
Coordinates

13.0185° N, 77.4742° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
208
2018 lake survey
BUBNDPggd_kr4-468
Lake Development Authority
LDA137
KGIS tank map
1192
Water bodies census
1/12/002/000002/000183/002