Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Mahadevapura Kere

ಕಗ್ಗದಾಸಪುರ ಕೆರೆ

Also called Mahadevapura Lake

Kere, a large tank, in Mahadevapura ward, Bengaluru East

See it on the map
Size
18.0 acresAbout 10 football pitches
Rank by size
496th 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
1% of the lakeSatellite, 2021. The 2018 survey found 0.1% encroached.
Campaign
Residents are organising here

Through the years

Nothing on record for 1890 to 1944, 1946 to 1954, 1956 to 1979 and 1981 to 1983.

The records listed below, drawn on one line from 1889 to 2026.

  1. 1889

    Built

    As the 2018 lake survey records it

    See source

  2. 1945

    On the survey map

    See source

  3. 1955

    Not on the U.S. Army map

    Compiled from Survey of India maps of 1945-46

    See source

  4. 1980

    On the survey map

    See source

  5. 1984-2021

    Held water every year

    Water in 34% of all satellite passes, 1984-2024

    0% of its water area has since gone dry; 33% 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. 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

    0.1% encroached, sewage, 26.6 acres surveyed

    See source

  9. 2023-2026

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

    Aug 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

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

    Dry season, Mar 2026 to May 2026

    • 92% open water
    • 8% floating weed
    • 0% dry or built
    See source

How big it is

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

Drawn outline
18.0 acres

About 10 football pitches

See source
Land records
26.6 acres

About 15 football pitches

See source
2018 lake survey
26.6 acres

About 15 football pitches

See source
End to end
423 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 Aug 2023
Fit only for wildlife and fish: 26 months. Fit only for irrigation: 8 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
Sewage
See source
What pollutes it, 2018

Sewage

See source
Sewage flows in, 2018

From the south-west

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, phenolphthalein alkalinity, sulphate

MeasureUnitValue
Water temperature°C25
Dissolved oxygenmg/L2
pH7.8
ConductivityµS/cm475
BODmg/L28
Nitratemg/L as N1.7
Nitritemg/L as N0.05
Faecal coliformMPN/100mL790
Total coliformMPN/100mL2,800
Bicarbonatemg/L104
TurbidityNTU8.9
Total alkalinitymg/L as CaCO3104
Chloridemg/L96
CODmg/L212
Kjeldahl nitrogenmg/L as N2.5
Ammonia nitrogenmg/L as N1.8
Total hardnessmg/L as CaCO384
Calcium hardnessmg/L as CaCO348
Calciummg/L19.2
Magnesium hardnessmg/L as CaCO336
Magnesiummg/L8.8
Sodiummg/L38
Dissolved solidsmg/L322
Suspended solidsmg/L12
Phosphatemg/L0.29
Potassiummg/L6
Fluoridemg/L0.25
Sodium share%47
Sodium adsorption ratio1.8
Orthophosphatemg/L0.8

Every month the state board tested it

MonthClassDissolved oxygenmg/LBODmg/LFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
Jul 2026E2287902,800See source
Jun 2026E1.4304609,200See source
May 2026D5.556302,800See source
Apr 2026D5.955802,800See source
Mar 2026D594702,800See source
Feb 2026E3.313471,600See source
Jan 2026D5.552703,500See source
Dec 2025E1.8124003,500See source
Nov 2025E2.1123902,100See source
Oct 2025D6.142103,500See source
Sep 2025D5.392502,200See source
Aug 2025D641,3009,400See source
Jul 2025D4.483104,300See source
Jun 2025D4.885804,300See source
May 2025D5.952,30013,000See source
Apr 2025E2.7201703,500See source
Mar 2025D4.75311,600See source
Feb 2025D6.482303,500See source
Jan 2025D5.2102502,800See source
Dec 2024D4.382103,500See source
Nov 2024D6.992602,200See source
Sep 2024D6.143,10,0007,00,000See source
Aug 2024D641,4004,800See source
Jul 2024D4.394705,400See source
Jun 2024D5.241,10,0004,60,000See source
May 2024E3.4292102,200See source
Apr 2024D4.191,2007,900See source
Mar 2024D5.661402,400See source
Feb 2024D4.682,1007,000See source
Jan 2024D5.853,3009,400See source
Dec 2023D4.1104,30054,000See source
Oct 2023D4.482,10054,000See source
Sep 2023E3.23.23,10035,000See source
Aug 2023D4.672,20024,000See source

Inlet and outlet tests, 2017-18 lake survey

DateWhereWater temperature°CLight transparencycmpHConductivityµS/cmDissolved solidsmg/LSuspended solidsmg/LTurbidityNTUDissolved oxygenmg/LCODmg/LBODmg/LKjeldahl nitrogenmg/L as NTotal coliformMPN/100mL
2017-11-2924.778.11,00098018964.49633.6351900
See source

How much is built over

Built inside the outline
1%

From satellite land cover, 2021

See source
Encroached area, 2017
0.70 acres

Reported by the state legislature’s committee on lake encroachment

See source
Encroached by

Private owners and government agencies

See source
Taken for

IT Company & road

See source
Where it is encroached

On the south-east and south-west side

See source
Dumped in it

Garbage & burning of waste

See source
Other problems noted

Soil excavation

See source
Land record maps
See source
Land within 500 m

79% built, 11% trees, 4% crops, 2% bare ground, 2% grass, 2% shrubs, 0.8% water

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

Doddanekundi Kere

See source
Catchment
1.4 km²

The land that drains into it

See source
Fed by, 2018 survey

Rainfall & drain

See source
Built parts, 2018 survey

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

See source
Used for, 2018 survey

Fishing

See source
Nearest sewage treatment plant

Kaggadasapura STP

2.5 km away

See source

What lives here

Birds recorded
97 species

Most seen: Black Kite, Indian Pond-Heron, Red-wattled Lapwing, Little Egret and Rock Pigeon.

1,515 sightings, mostly from birdwatchers

See source
All wildlife recorded
99 species

1,517 records, 2016 to 2026

See source
Threatened species seen here
1
  • Spot-billed Pelican near threatened
See source
Photographed on iNaturalist
12 times

4 species, 2 confirmed by other naturalists.

Most seen: Hump Back Araneid Spider, Cockspur coral tree, blue plumbago and Indian Red Bug.

Last seen Sep 2025

See source
Animals seen, 2018 survey

Birds and butterflies

See source
Water plants, 2018 survey

Emergent

See source
Weed cover, 2018 survey

Partial

See source

Around it

Around it in 2018

Villas, IT companies, shed, petrol bunk & buildings

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Ward 22
Mahadevapura

ಮಹದೇವಪುರ

Bengaluru East corporation, K.R. Pura assembly seat

See source
Village
Mahadevapura

KR Puram hobli, Bengaluru East taluk, Bengaluru Urban district

See source
Land survey numbers

7

See source
Height above sea level
888 m
See source
Coordinates

12.9873° N, 77.6922° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
143
2018 lake survey
BUBEKRmvp_kr3-734
Lake Development Authority
LDA343
KGIS tank map
672
Water bodies census
2/12/002/253189/025996/004
City lake monitoring site
147