Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Andhrahalli Lake

Also called Andrahalli Lake

Kere, a large tank, in Andrahalli ward, Bengaluru West

See it on the map
Size
11.2 acresAbout 6.3 football pitches
Rank by size
698th largestOf 1,621 lakes that still exist
Valley
Arkavathi
Who looks after it
BBMPBruhat Bengaluru Mahanagara Palike
Water quality
Fit only for irrigationTested Jul 2026
Built over
0% of the lakeSatellite land cover, 2021

Through the years

Nothing on record for 1915 to 1956, 1958 to 1973 and 1975 to 1983.

The records listed below, drawn on one line from 1914 to 2026.

  1. 1914

    Not on the survey map

    See source

  2. 1957

    Built

    As the 2018 lake survey records it

    See source

  3. 1974

    On the survey map

    See source

  4. 1984-2021

    Held water most years

    Water in 25% of all satellite passes, 1984-2024

    3% of its water area has since gone dry; 50% 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

  5. 2014

    Restored

    See 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

    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

  8. 2018

    Still there in the 2018 lake survey

    Polluted, 16.1 acres surveyed

    See source

  9. 2023-2026

    Tested by the state board in 29 months, most often fit only for irrigation

    Aug 2023 to Jul 2026

    See every testSee source

  10. 2025-2026

    Mostly floating weed after the monsoon; mostly dry or built in the dry season

    After monsoon, Oct 2025 to Dec 2025

    • 1% open water
    • 59% floating weed
    • 40% dry or built

    Dry season, Mar 2026 to May 2026

    • 0% open water
    • 5% floating weed
    • 95% dry or built
    See source

How big it is

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

Drawn outline
11.2 acres

About 6.3 football pitches

See source
Land records
15.4 acres

About 8.8 football pitches

See source
2018 lake survey
16.1 acres

About 9.2 football pitches

See source
End to end
319 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 29 times since Aug 2023
Fit only for wildlife and fish: 5 months. Fit only for irrigation: 24 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
Polluted
See source
What pollutes it, 2018

Dumping

See source
Sewage flows in, 2018

From the east

See source
Older tests
4 readings

From 2011 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, phenolphthalein alkalinity

MeasureUnitValue
Water temperature°C29
Dissolved oxygenmg/L1.1
pH6.6
ConductivityµS/cm800
BODmg/L33
Nitratemg/L as N2.9
Nitritemg/L as N0.68
Faecal coliformMPN/100mL4,300
Total coliformMPN/100mL14,000
Bicarbonatemg/L112
TurbidityNTU15
Total alkalinitymg/L as CaCO3112
Chloridemg/L48
CODmg/L188
Kjeldahl nitrogenmg/L as N19
Ammonia nitrogenmg/L as N15
Total hardnessmg/L as CaCO3360
Calcium hardnessmg/L as CaCO3184
Calciummg/L73.6
Magnesium hardnessmg/L as CaCO3176
Magnesiummg/L42.8
Sulphatemg/L135
Sodiummg/L83
Dissolved solidsmg/L536
Suspended solidsmg/L20
Phosphatemg/L0.6
Potassiummg/L8
Fluoridemg/L0.35
Sodium share%33
Sodium adsorption ratio1.9
Orthophosphatemg/L1.4

Every month the state board tested it

MonthClassDissolved oxygenmg/LBODmg/LFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
Jul 2026E1.1334,30014,000See source
Jun 2026E3.2204,90013,000See source
Feb 2026E0.55032,0003,50,000See source
Jan 2026E0.8802,7007,900See source
Dec 2025D6.253902,100See source
Nov 2025E0.7631,4007,900See source
Oct 2025E3.2163302,800See source
Sep 2025E6917,0002,20,000See source
Aug 2025E3.21814,00046,000See source
Jul 2025E8321,0001,70,000See source
Jun 2025E7325,00058,000See source
May 2025D59260920See source
Apr 2025E2.3252,60016,000See source
Feb 2025E2.6202,10014,000See source
Jan 2025D5.7101,10013,000See source
Dec 2024D5.4107803,900See source
Nov 2024D6.862,1009,400See source
Oct 2024E1.8201,40011,000See source
Sep 2024E3.3152103,500See source
Jul 2024E3.2168409,200See source
Jun 2024E3.41611,00079,000See source
May 2024E582105,400See source
Apr 2024E251,10011,000See source
Mar 2024E3.316See source
Feb 2024E1.22026,00070,000See source
Jan 2024E0.4293,30,00,00,0007,00,00,00,000See source
Dec 2023E3.6452,70,00,00024,00,00,000See source
Oct 2023E3946,0003,50,000See source
Aug 2023E0.8184,60092,000See source

Older tests

DateWhereReadingChloridePhosphateSuspended solidsmg/LDissolved oxygenmg/LNitratemg/L as NTotal hardnessFluoridepHZincManganeseAluminiumE coliTotal coliformMPN/100mLCopperWater temperature°CConductivityµS/cmBODmg/LNitrate and nitritemg/L as NFaecal coliformMPN/100mLSource
2011Andrahalli kere, Inlet3580.1136.5926.255883.518.340.140.822.461,60,0001,60,000See source
2011Andrahalli kere, Outlet2580.21916.87.075963.948.180.150.682.421,60,0001,60,0000.01See source
2021Andhrahalli Lake, Andhrahalli, Bengaluru, LakeLowest0.36.324,0002535840.33,400See source
2021Andhrahalli Lake, Andhrahalli, Bengaluru, LakeHighest6.27.254,00,000251,637292.27,00,000See 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/100mL
2017-11-2224187.655624034493.88021.61.631220
See source

How much is built over

Built inside the outline
0%

From satellite land cover, 2021

See source
Encroached area, 2017
0.07 acres

Reported by the state legislature’s committee on lake encroachment

See source
Dumped in it

Garbage dump

See source
Land within 500 m

83% built, 7% trees, 5% crops, 2% 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
Rajarajeshwari Nagar
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
Arkavathi

The river basin its water drains to

See source
Overflows into

Kachohalli Kere

See source
Catchment
2.3 km²

The land that drains into it

See source
Fed by, 2018 survey

Rain, drain fed

See source
Built parts, 2018 survey

1 inlet drain, 1 overflow weir, 1 sluice gate, no culverts, no check dams and 1 island

See source
Used for, 2018 survey

Park maintenance

See source

What lives here

Birds recorded
49 species

Most seen: Indian Pond-Heron, Eurasian Coot, Western Swamphen, Little Grebe and Red-wattled Lapwing.

108 sightings, mostly from birdwatchers

See source
All wildlife recorded
49 species

108 records, 2020 to 2024

See source
Photographed on iNaturalist
23 times

15 species, 23 confirmed by other naturalists.

Most seen: Bronze-winged Jacana, Northern Shoveler, Indian Pond-Heron, Eurasian Coot and Gray-headed Swamphen.

Last seen Feb 2021

See source
Animals seen, 2018 survey

Birds, butterflies and dragonflies

See source
Weed cover, 2018 survey

Partial

See source

Around it

Around it in 2018

Settlement, agriculture, layout, & plantation

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Ward 12
Andrahalli

ಅಂದ್ರಹಳ್ಳಿ

Bengaluru West corporation, Yeshwanthapura assembly seat

See source
Village
Handrahalli

Yeshwanthpura hobli, Bengaluru North taluk, Bengaluru Urban district

See source
Land survey numbers

8

See source
Height above sea level
895 m
See source
Coordinates

13.0110° N, 77.4864° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
248
2018 lake survey
BUBNYPhad_kr1-111
Lake Development Authority
LDA015
KGIS tank map
1200
Water bodies census
2/12/002/253189/026043/002
City lake monitoring site
125