Where does our water supply come from? What is our water allowance? How much water do each of us use in a day? How do the two figures compare? And how is our waste water disposed? As urban Indians, we can be rather clueless about how we use and dispose of the water coming through our taps. This is a luxury; perhaps one we will not be able to exercise for long. Meet Avinash Krishnamurthy, an expert in Sustainable Water Solutions and the CEO at Biome Solutions. He offers us an insight using the example of Bangalore and what's happened with this city's water supply over the decades. He also talks about what needs changing and shares simple ways in which you and I can help.