Radha Kunj Lake:
Restoring a Living Ecosystem
Bengaluru | Nature-Based Lake Rejuvenation

Radha Kunj Lake:
Restoring a Living Ecosystem
Bengaluru | Nature-Based Lake Rejuvenation

Radha Kunj Lake

Set within the Art of Living International Center, Bengaluru, Radha Kunj Lake spans 4.33 hectares. Once a thriving, rain-fed ecosystem, it had deteriorated due to polluted inflows, falling oxygen levels, and declining biodiversity.

Instead of heavy engineering, the lake was restored using nature-based solutions - working with ecological processes to bring it back to life.

Understanding the Challenge

A detailed study mapped inflows, traced pollution sources, and analysed water quality. Native plant systems were assessed for their natural ability to filter and absorb contaminants.

Nature-Led Solutions

  • Slowing water flow with boulder checks
  • Gravel bed filter to physically trap debris to convert waste into safer compounds
  • Breaking down pollutants through microbial treatment
  • Using native plants and algae to absorb nutrients
  • Restoring depth through desilting
  • Improving oxygen levels with aeration
Radha Kunj Lake

Real Results
Within months, water quality improved. Oxygen levels rose, pollutants declined, and odour reduced - clear signs of recovery.

A Lake Reborn
Since 2023, aquatic life has begun to return, biodiversity is improving, and the ecosystem is regenerating.

A Scalable Approach
Radha Kunj shows that lake restoration can be simple, effective, and scalable — offering a sustainable model for urban and peri-urban landscapes.

Testimonials