The Centre has told the state government that it will not release any funds for the upkeep of Rabindra Sarovar in south Calcutta. The decision comes a few days before World Environment Day. Union environment minister Suresh P Prabhu, in a letter to state urban development minister Ashok Bhattacharya, has stated that a project for the upkeep of the lakes has not yet been approved by the Union government. The plan had been given the nod by the Gujral government.