Many people waste water and it is only during droughts that they feel the pinch of their actions. A Bengaluru man however hasn't faced water problems in over two decades and he hasn't even paid water bills because of his innovative sustainable lifestyle.

According to a media report, AR Shivakumar has built a sustainable water harvesting system that gives him more water than he ever requires. The senior scientist at the Karnataka State Council for Science and Technology had designed a system in his house that yields as much as 400 litres a day. The scientist however doesn’t just have enough he has excess water that would even suffice for his household need if there was a drought.

Shivakumar’s system lets his family of four easily use 400 litres of water a day without issues unlike other people in Bengaluru. The water is kitchen sink, washing machine and rooftop into an underground system that recycles the water to be reused.