Lakes of Bendakaluru

Satellite view: Esri, Maxar, Earthstar Geographics

Tarahunase Lake

See it on the map
Size
28.9 acresAbout 16 football pitches
Rank by size
321st largestOf 1,621 lakes that still exist
Valley
Hebbal
Who looks after it
Nobody on record looks after it
Water quality
Not tested for water quality yet
Built over
0.4% of the lakeSatellite land cover, 2021

Through the years

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

The records listed below, drawn on one line from 1927 to 2026.

  1. 1927

    On the survey map

    See source

  2. 1955

    On the U.S. Army map

    Compiled from Survey of India maps of 1945-46

    See source

  3. 1978

    On the survey map

    See source

  4. 1984-2021

    Held water in 19 of 34 years

    Water in 13% of all satellite passes, 1984-2024

    0% of its water area has since gone dry; 62% is new water

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

    See sourceSee source

  5. 2017-2018

    In the water bodies census, not marked as encroached

    This census's status marks are often wrong

    See source

  6. 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

  7. 2025-2026

    Mostly open water after the monsoon and in the dry season

    After monsoon, Oct 2025 to Dec 2025

    • 80% open water
    • 16% floating weed
    • 5% dry or built

    Dry season, Mar 2026 to May 2026

    • 81% open water
    • 11% floating weed
    • 8% dry or built
    See source

How big it is

Drawn outline
28.9 acres

About 16 football pitches

See source
End to end
603 m

The longest straight line across the outline

See source

How clean the water is

Not tested for water quality yet.

How much is built over

Built inside the outline
0.4%

From satellite land cover, 2021

See source
Land within 500 m

57% crops, 20% shrubs, 18% trees, 2% built, 2% grass

From satellite land cover, 2021

See source

Who looks after it

Nobody on record looks after it.

Where its water comes from and goes

Valley
Hebbal

The river basin its water drains to

See source
Overflows into

Timmasadra Kere

See source
Catchment
1.9 km²

The land that drains into it

See source

What lives here

Birds recorded
144 species

Most seen: Great Cormorant, Gray Heron, Common Myna, Little Egret and Black Kite.

6,364 sightings, mostly from birdwatchers

See source
All wildlife recorded
175 species

6,408 records, 2021 to 2026

See source
Threatened species seen here
3
  • Indian Roller near threatened
  • Pallid Harrier near threatened
  • Caterpillar Slug endangered
See source
Photographed on iNaturalist
178 times

89 species, 92 confirmed by other naturalists.

Most seen: Great Cormorant, Indian Black Ant, Asian Green Bee-eater, Common Kingfisher and Grey Heron.

Last seen Jul 2026

See source

Around it

Nothing on record about what is around it.

Photos

No photos of it on Wikimedia Commons yet.

Where it is

Greater Bengaluru
Outside the city limits
See source
Height above sea level
921 m
See source
Coordinates

13.1847° N, 77.5927° E

See source

Read more

OpenStreetMap
See source
Its number in each record
ATREE lake map
793
KGIS tank map
893
Water bodies census
1/12/002/000002/000097/001