In India, Bangalore used to be known as the "city of lakes", with 285 lakes making the southern city self-sufficient in the 1970s. But since then, unchecked urbanisation has led to a whopping 85% decline in water bodies. Those lakes that do still exist are polluted and toxic. The situation is so bad that experts predict Bangalore will become uninhabitable by 2025. Our correspondents report.
A programme prepared by Patrick Lovett, Rebecca Martin and Gaëlle Essoo.