Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Dasarahalli Kere

ದಾಸರಹಳ್ಳಿ ಕೆರೆ

Also called Chokkasandra Lake, Dasarahalli Tank

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

See it on the map
Size
13.7 acresAbout 7.8 football pitches
Rank by size
611th 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, 2021. The 2018 survey found 5% encroached.

Through the years

Nothing on record for 1905 to 1926, 1928 to 1954, 1956 to 1977 and 1979 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. 1927

    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. 1978

    On the survey map

    See source

  5. 1984-2021

    Held water in 13 of 33 years

    Water in 17% of all satellite passes, 1984-2024

    0% of its water area has since gone dry; 49% is new water

    5 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. 2011

    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

    Mostly water every year

    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

    5% encroached, stp water, 27.8 acres surveyed

    See source

  10. 2023-2026

    Tested by the state board in 35 months, most often fit only for wildlife and fish

    Jul 2023 to Jul 2026

    See every testSee source

  11. 2025-2026

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

    After monsoon, Oct 2025 to Dec 2025

    • 4% open water
    • 93% floating weed
    • 3% dry or built

    Dry season, Mar 2026 to May 2026

    • 0.7% open water
    • 47% floating weed
    • 52% dry or built
    See source

How big it is

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

Drawn outline
13.7 acres

About 7.8 football pitches

See source
Land records
27.8 acres

About 16 football pitches

See source
2018 lake survey
27.8 acres

About 16 football pitches

See source
End to end
393 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 35 times since Jul 2023
Fit only for wildlife and fish: 18 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
Stp water
See source
Older tests
2 readings

From 2021

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

Latest test, Jul 2026. Too low to measure: boron, carbonate, phenolphthalein alkalinity

MeasureUnitValue
Water temperature°C32
Dissolved oxygenmg/L2.2
pH6.8
ConductivityµS/cm629
BODmg/L23
Nitratemg/L as N2.5
Nitritemg/L as N0.6
Faecal coliformMPN/100mL3,300
Total coliformMPN/100mL13,000
Bicarbonatemg/L108
TurbidityNTU12.2
Total alkalinitymg/L as CaCO3108
Chloridemg/L112
CODmg/L168
Kjeldahl nitrogenmg/L as N5.7
Ammonia nitrogenmg/L as N4.4
Total hardnessmg/L as CaCO3156
Calcium hardnessmg/L as CaCO380
Calciummg/L32
Magnesium hardnessmg/L as CaCO376
Magnesiummg/L18.5
Sulphatemg/L79
Sodiummg/L65
Dissolved solidsmg/L436
Suspended solidsmg/L16
Phosphatemg/L0.6
Potassiummg/L7
Fluoridemg/L0.38
Sodium share%46
Sodium adsorption ratio2.2
Orthophosphatemg/L1.4

Every month the state board tested it

MonthClassDissolved oxygenmg/LBODmg/LFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
Jul 2026E2.2233,30013,000See source
Jun 2026E2.5253,30011,000See source
May 2026E1.8302,20013,000See source
Apr 2026D5.272,2007,900See source
Mar 2026E32117,00070,000See source
Feb 2026D4.8114302,200See source
Jan 2026E1.8383905,400See source
Dec 2025D4.482803,500See source
Nov 2025E2.3213902,800See source
Oct 2025D4.573302,100See source
Sep 2025E3194002,200See source
Aug 2025D4.572604,300See source
Jul 2025D6.151102,400See source
Jun 2025D4.253,1008,400See source
May 2025E3.564303,500See source
Apr 2025E2131,7009,400See source
Mar 2025E2.8159304,800See source
Feb 2025D6.856104,900See source
Jan 2025D6.262,1009,400See source
Dec 2024D5.898204,700See source
Nov 2024D6.861,4007,900See source
Oct 2024D4.6514,00070,000See source
Sep 2024E2.651402,400See source
Aug 2024E2.2242,10011,000See source
Jul 2024E3.2182403,500See source
Jun 2024D4.842,6009,400See source
May 2024D5.841702,400See source
Apr 2024E1.2181703,300See source
Mar 2024E0.5181,40024,000See source
Feb 2024E3.2184,3009,400See source
Jan 2024D5.643,30014,000See source
Dec 2023D4.4658,0001,60,000See source
Oct 2023E2.6184,9001,60,000See source
Aug 2023D5.674,0001,60,000See source
Jul 2023D4.842,20024,000See source

Older tests

DateWhereReadingWater temperature°CDissolved oxygenmg/LpHConductivityµS/cmBODmg/LNitrate and nitritemg/L as NFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
2021Dasarahalli Tank, TankLowest252.96.119420.513,30013,000See source
2021Dasarahalli Tank, TankHighest266.87.41,120142.540,0003,50,000See 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
2017-11-22Inlet25.6137.53432743548.75.68019.20.610220
2017-11-22Outlet25.887.6319250242237.54.414434.60.71722
See source

How much is built over

Built inside the outline
0%

From satellite land cover, 2021

See source
Encroached area, 2017
3.63 acres

Reported by the state legislature’s committee on lake encroachment

See source
Encroached by

The public and road

See source
Taken for

Sheds, buildings & road

See source
Where it is encroached

On the south-east, north and south-west side

See source
Dumped in it

Garbage & plastic

See source
Land record maps
See source
Land within 500 m

88% built, 9% trees, 1% grass, 1% crops, 0.8% bare ground

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
Dasarahalli
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
Water comes from
  • Settlement runoff
See source
Overflows into

Doddabidarakallu Lake

See source
Catchment
4.2 km²

The land that drains into it

See source
Fed by, 2018 survey

Rain & drain fed

See source
Built parts, 2018 survey

3 inlet drains, 1 overflow weir, 1 sluice gate, 2 culverts, no check dams and 1 island

See source
Used for, 2018 survey

Fishing

See source
Nearest sewage treatment plant

Sewage Treatment Plant

2.1 km away

See source

What lives here

Birds recorded
51 species

Most seen: Rock Pigeon, Black Kite, Indian Pond-Heron, Brahminy Kite and Rose-ringed Parakeet.

206 sightings, mostly from birdwatchers

See source
All wildlife recorded
51 species

206 records, 2020 to 2024

See source
Threatened species seen here
1
  • Spot-billed Pelican near threatened
See source
Animals seen, 2018 survey

Birds, butterflies and dragonflies

See source
Water plants, 2018 survey

Emergent

See source
Weed cover, 2018 survey

Partial

See source

Around it

Around it in 2018

Settlement & sheds

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Ward 2
Chokkasandra

ಚೊಕ್ಕಸಂದ್ರ

Bengaluru West corporation, Dasarahalli assembly seat

See source
Village
Chokkasandra

Yeshwanthpura hobli, Bengaluru North taluk, Bengaluru Urban district

See source
Land survey numbers

5 (Chokkasandra), 24 (Dasarahalli)

See source
Height above sea level
907 m
See source
Coordinates

13.0409° N, 77.5125° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
251
2018 lake survey
BUBNYPcho_kr1-93
Lake Development Authority
LDA102
KGIS tank map
1152
Water bodies census
2/12/002/276600/1302711/001
City lake monitoring site
45