Kolkata (West Bengal) [India], September 29 (ANI): West Bengal Chief Minister Mamata Banerjee on Sunday launched a sharp attack on the BJP-led Central government over the flood situation in the state, accusing them of neglecting it and doing nothing to alleviate the problem. Speaking to reporters before departing for north Bengal to assess the flood situation there, CM Mamata stated, “Nothing has been done, the entire north Bengal is submerged. Everyone makes grand promises during elections and then disappears.” She further said that 5 lakh cusecs of Koshi river water was released from Nepal w…