In a city that survives on water tankers and bottled water, Bengaluru’s AR Shiv Kumar has no water connection at his house and hasn’t had to pay for water in the last twenty years.

Known as the rain catcher of Bengaluru, Shiv Kumar, a rain water harvesting expert at the Indian Institute of Science, Bengaluru, has survived on rainwater ever since he built his ‘dream house’ aka ‘green house’ Sourabha.