Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Bettahalsur Kere

Also called Bettahalasuru Lake

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

See it on the map
Size
15.7 acresAbout 8.9 football pitches
Rank by size
549th largestOf 1,621 lakes that still exist
Valley
Dakshina Pinakini
Who looks after it
BDABangalore Development Authority
Water quality
Not tested for water quality yet
Built over
0% of the lakeSatellite, 2021. The 2018 survey found 3% encroached.

Through the years

Nothing on record for 1920 to 1926, 1928 to 1954, 1956 to 1977 and 1979 to 1983.

The records listed below, drawn on one line from 1919 to 2026.

  1. 1919

    Built

    As the 2018 lake survey records it

    See source

  2. 1927

    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. 1978

    Not on the survey map

    See source

  5. 1984-2021

    Held water most years

    Water in 13% 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

    See sourceSee source

  6. 1986

    Listed among green belt tanks by the Lakshman Rau committee

    Printed as Bettahalasur tank, tank N.A.

    12.5 ha, as printed in the 1986 report

    Among the tanks between Tumkur Road and Bellary Road, Devanahalli 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, polluted, 26.4 acres surveyed

    See source

  10. 2025-2026

    Mostly open water after the monsoon and in the dry season

    After monsoon, Oct 2025 to Dec 2025

    • 82% open water
    • 17% floating weed
    • 2% dry or built

    Dry season, Mar 2026 to May 2026

    • 90% open water
    • 9% floating weed
    • 0.2% dry or built
    See source

How big it is

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

Drawn outline
15.7 acres

About 8.9 football pitches

See source
2018 lake survey
26.4 acres

About 15 football pitches

See source
End to end
497 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

State pollution board
Not tested by the state board
How it looked in 2018
Polluted
See source
What pollutes it, 2018

Sewage

See source
Sewage flows in, 2018

From the north-west

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

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
2017-11-1426.3257.5367300409112830.70.1281,600
See source

How much is built over

Built inside the outline
0%

From satellite land cover, 2021

See source
Encroached area, 2017
1.02 acres

Reported by the state legislature’s committee on lake encroachment

See source
Encroached by

Farmers and the public

See source
Taken for

Agriculture & graveyard

See source
Where it is encroached

On the west and south side

See source
Dumped in it

Garbage

See source
Other problems noted

Rapid soil excavation

See source
Land record maps
See source
Land within 500 m

32% crops, 29% built, 21% trees, 8% bare ground, 4% grass, 4% shrubs, 2% water

From satellite land cover, 2021

See source

Who looks after it

Looked after by
Bangalore Development Authority

BDA

See source

Where its water comes from and goes

Valley
Dakshina Pinakini

The river basin its water drains to

See source
Overflows into

Chikka Jala Amani Kere

See source
Catchment
1.8 km²

The land that drains into it

See source
Fed by, 2018 survey

Rain runoff

See source
Built parts, 2018 survey

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

See source
Used for, 2018 survey

Cattle feeding

See source

What lives here

Birds recorded
52 species

Most seen: Common Myna, Little Swift, Eastern Red-rumped Swallow, Greater Coucal and Rock Pigeon.

69 sightings, mostly from birdwatchers

See source
All wildlife recorded
52 species

69 records, all in 2023

See source
Animals seen, 2018 survey

Birds

See source
Weed cover, 2018 survey

Partial

See source

Around it

Around it in 2018

Hillock, agriculture, settlement, plantation & graveyard

See source

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Greater Bengaluru
Outside the city limits
See source
Village
Bettahalsuru

Jala hobli, Bengaluru North taluk, Bengaluru Urban district

See source
Land survey numbers

101 (Bettahalsur), 29 (Sonnappanahalli)

See source
Height above sea level
924 m
See source
Coordinates

13.1601° N, 77.6142° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
271
2018 lake survey
BUBNJLbth_kr2-334
Lake Development Authority
LDA044
KGIS tank map
871
Water bodies census
1/12/002/000002/000108/001