Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Kodigehalli Lake

ಕೊಡಿಗೇಹಳ್ಳಿ ಕೆರೆ

Also called Sadaramangala leke, Sadaramangala lake

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

See it on the map
Size
40.5 acresAbout 23 football pitches
Rank by size
218th largestOf 1,621 lakes that still exist
Valley
Hebbal
Who looks after it
BBMPBruhat Bengaluru Mahanagara Palike
Water quality
Fit only for irrigationTested Jul 2026
Built over
0.1% of the lakeSatellite, 2021. The 2018 survey found 3% encroached.
Campaign
Residents are organising here

Through the years

Nothing on record for 1904 to 1944, 1946 to 1954, 1956 to 1979 and 1981 to 1983.

The records listed below, drawn on one line from 1903 to 2026.

  1. 1903

    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 most years

    Water in 47% of all satellite passes, 1984-2024

    9% of its water area has since gone dry; 35% is new water

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

    See sourceSee source

  6. 1986

    Listed among green belt tanks by the Lakshman Rau committee

    Printed as Sadaramangala Tank, tank 322

    7.5 ha, as printed in the 1986 report

    Among the tanks between Madras Road and Hosur Road, Bangalore South taluk

    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 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

    3% encroached, clean, 52.5 acres surveyed

    See source

  10. 2023-2026

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

    Aug 2023 to Jul 2026

    See every testSee source

  11. 2024

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

    See source

  12. 2025-2026

    Mostly open water after the monsoon and in the dry season

    After monsoon, Oct 2025 to Dec 2025

    • 90% open water
    • 7% floating weed
    • 3% dry or built

    Dry season, Mar 2026 to May 2026

    • 83% open water
    • 11% floating weed
    • 6% dry or built
    See source

How big it is

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

Drawn outline
40.5 acres

About 23 football pitches

See source
Land records
51.1 acres

About 29 football pitches

See source
2018 lake survey
52.5 acres

About 30 football pitches

See source
End to end
779 m

The longest straight line across the outline

See source
Deepest point, 2018
3.5 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 Jul 2026

See source
Class each month, tested 35 times since Aug 2023
Fit only for wildlife and fish: 20 months. Fit only for irrigation: 15 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
Sewage flows in, 2018

From the south-west

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, suspended solids

MeasureUnitValue
Water temperature°C26
Dissolved oxygenmg/L1.2
pH7.2
ConductivityµS/cm755
BODmg/L17
Nitratemg/L as N2.9
Faecal coliformMPN/100mL4,600
Total coliformMPN/100mL17,000
Bicarbonatemg/L160
TurbidityNTU6.8
Total alkalinitymg/L as CaCO3160
Chloridemg/L116
CODmg/L184
Kjeldahl nitrogenmg/L as N5.9
Ammonia nitrogenmg/L as N5.3
Total hardnessmg/L as CaCO3196
Calcium hardnessmg/L as CaCO3100
Calciummg/L40
Magnesium hardnessmg/L as CaCO396
Magnesiummg/L23.3
Sulphatemg/L35
Sodiummg/L73
Dissolved solidsmg/L510
Phosphatemg/L0.37
Potassiummg/L14
Fluoridemg/L0.22
Sodium share%43
Sodium adsorption ratio2.26
Orthophosphatemg/L1.1

Every month the state board tested it

MonthClassDissolved oxygenmg/LBODmg/LFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
Jul 2026E1.2174,60017,000See source
Jun 2026E2.6275804,300See source
May 2026E2.5521,7007,900See source
Apr 2026D4.264603,500See source
Mar 2026D4.991702,400See source
Feb 2026D4.3648920See source
Jan 2026E3.416491,600See source
Dec 2025E1.5103,2009,400See source
Nov 2025E0.7384003,500See source
Oct 2025D7.152102,200See source
Sep 2025D6.243102,800See source
Aug 2025D5.952,60014,000See source
Jul 2025D6.644302,800See source
Jun 2025D572,10013,000See source
May 2025D4.48141,600See source
Apr 2025E1.6263,30013,000See source
Mar 2025E2.9213102,800See source
Feb 2025D5.95261,600See source
Jan 2025D6.28321,600See source
Dec 2024E3.2252405,400See source
Nov 2024D782501,700See source
Oct 2024D4.2825920See source
Sep 2024E2.2381703,500See source
Aug 2024D5.653103,500See source
Jul 2024D5.951403,500See source
Jun 2024D4.2142,10014,000See source
May 2024E2.61421,00070,000See source
Apr 2024D4.683304,300See source
Mar 2024E3.5191,4004,900See source
Feb 2024E2.6162,1009,400See source
Jan 2024D5.852,20013,000See source
Dec 2023E2.2137,0001,60,000See source
Oct 2023D644309,200See source
Sep 2023E3.2173,40035,000See source
Aug 2023D4.791,30024,000See source

Older tests

DateWhereReadingWater temperature°CDissolved oxygenmg/LpHConductivityµS/cmBODmg/LNitrate and nitritemg/L as NFaecal coliformMPN/100mLTotal coliformMPN/100mLSource
2021Sadramangala Lake, LakeLowest241.56.555241.43,30024,000See source
2021Sadramangala Lake, LakeHighest2578.31,027351015,0001,60,000See 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
2017-11-30Inlet23.757.890662062394.810217.614900
See source

How much is built over

Built inside the outline
0.1%

From satellite land cover, 2021

See source
Encroached area, 2017
1.05 acres

Reported by the state legislature’s committee on lake encroachment

See source
Encroached by

Private owners

See source
Taken for

Compound wall

See source
Where it is encroached

On the east side

See source
Other problems noted

Borwell & Idol immersion

See source
Land record maps
See source
Land within 500 m

44% built, 19% crops, 16% trees, 11% shrubs, 6% grass, 4% 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
Work in progress
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
Hebbal

The river basin its water drains to

See source
Water comes from
See source
Overflows into

Hoodi Kunte3

See source
Catchment
8.2 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, no sluice gates, no culverts, no check dams and no islands

See source
Used for, 2018 survey

Washing and cattle feeding

See source
Nearest sewage treatment plant

BWSSB 5MLD ISPS Sadarmangala

520 m away, treats 5 million litres a day

See source

What lives here

Birds recorded
92 species

Most seen: Brahminy Kite, Common Myna, Spot-billed duck, Little Egret and Little Cormorant.

643 sightings, mostly from birdwatchers

See source
All wildlife recorded
94 species

645 records, 2017 to 2024

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

Birds and butterflies

See source
Water plants, 2018 survey

Emergent and free floating

See source
Weed cover, 2018 survey

Partial

See source

Around it

Around it in 2018

Agriculture, apartment, college, plantation, layout, brick factory, Godown & villas

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Ward 30
Belathur

ಬೆಳತ್ತೂರ್

Bengaluru East corporation, Mahadevapura assembly seat

See source
Village
Sadara Mangala

KR Puram hobli, Bengaluru East taluk, Bengaluru Urban district

See source
Land survey numbers

61 (Sadaramangala), 8 (Kodigehalli)

See source
Height above sea level
879 m
See source
Coordinates

13.0002° N, 77.7294° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
55
2018 lake survey
BUBEKRsdm_kr1-758
Lake Development Authority
LDA409
KGIS tank map
724
Water bodies census
2/12/002/253189/026025/004
City lake monitoring site
198