The Tamil Nadu government today said there was a "deficit" in realisation of its share of Cauvery water this year (2017-18) and urged the neighbouring Karnataka to release at least 15 tmcft of water to make up for a part of the shortfall.
In a letter to his Karnataka counterpart Siddaramaiah, Chief Minister K Palaniswami said Tamil Nadu had received only 111.647 tmcft as on January 9 at Biligundulu as against the due of 179.871 tmcft, leaving a deficit of 68.224 tmcft.
Palaniswami said the storage in Mettur reservoir in Salem district, which caters to the Cauvery delta region, as on January 12 was a "meagre" 21.27 tmcft even as the utilisable storage there was 16.27 tmcft.
This was "grossly inadequate" to meet the irrigation needs of standing crops and drinking water needs during summer months, he said.
"After reserving the minimum needs of drinking water supply and perennial crops, Karnataka can release at least 15 tmcft to Tamil Nadu to make up a part of the shortfall," he said.
This water is required to meet the crucial needs of the standing crops in the Cauvery delta, the Tamil Nadu chief minister asserted.
He also urged Siddaramaiah to instruct the officers concerned to release 7 tmcft of water immediately and the balance within a fortnight from the existing storage for saving the standing crops.
This should be done taking into consideration the plight of a large number of farmers of the delta who depend on the success of their crop to meet their livelihood, he said.
Extending 'Makara Sankaranthi' greetings to Siddaramiah and to the people of Karnataka, Palaniswami said that in this 'irrigation year' (2017-18), Mettur reservoir could be opened only on October 2, 2017 as against the normal date of June 12.
Though the Samba crop cultivation commenced soon after and the rainfall due to the north east monsoon was helpful in the beginning, its intensity became heavy and "destructive" by October end last year, he said.
"The young crop could not withstand the onslaught of such rainfall and got damaged to a considerable extent. The farmers of the Cauvery delta had to replant the crop, as a result of which the crop period got extended".
These standing crops need irrigation in the critical stage of crop growth maturity, namely, "milky and dough" stage, for which irrigation has to be extended beyond January 2018, he said.
"At this instance, I would like to point out that the farmers of Cauvery delta lost their crop last year, 2016-17, due to deficit inflows into Mettur reservoir," Palaniswami said.
The Supreme Court has recently indicated that it would deliver within a month its verdict on the decades old Cauvery dispute between the riparian states of Tamil Nadu and Karnataka, saying enough confusion had been created in the matter for over two decades.
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