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Tamil Nadu's mandatory rooftop rainwater harvesting law was passed in:
A1991, applying to industrial buildings only
B1995, applying to government buildings only
C2001, applying to all houses in the state
D2010, applying to commercial buildings only
Answer & Solution
Correct answer: C. 2001, applying to all houses in the state
In 2001, Tamil Nadu made rooftop rainwater harvesting MANDATORY for all houses in the state. By 2003 the move reversed the fall in Chennai's groundwater levels.
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