Mysuru, June 14 -- Mysuru's famed Karanji Lake, once renowned for its pristine waters, rich greenery and thriving birdlife, is facing a serious ecological threat as unchecked sewage inflow continues to pollute the waterbody.

What was once considered one of the city's most treasured tourist attractions and biodiversity hotspots is increasingly turning into a sewage reservoir, triggering concern among environmentalists, birdwatchers and local residents.

Spread across nearly 90 acres adjacent to Mysuru Zoo on Mysuru-Nanjangud Road, Karanji Lake has been receiving untreated sewage and underground drainage (UGD) water through Siddarthanagar stormwater drain for several years.

The continuous inflow of contaminated water has significantly det...