"As the state is reeling under severe drought, this government faces a formidable challenge in meeting the drinking water needs," he said while presenting the budget for the financial year 2017-18.
While there has been 62 per cent deficit in the rainfall collectively from the South West and North East Monsoon, the groundwater table has also gone down, Jayakumar said.
"Storage in most of the reservoirs supplying water to Chennai is only 10 to 20 per cent of their capacity", he said.
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