Continuing her verbal assaults on Prime Minister Narendra Modi on the demonetisation issue, West Bengal Chief Minister Mamata Banerjee on Sunday alleged that the step was taken only to help him and his associates."#DeMonetisation done only to help Modi babu and his close associates," Banerjee said in a post on her Twitter handle.In another tweet, she countered the Prime Minister's remarks at an Uttar Pradesh rally that the opposition parties never wanted to take the path of honesty."The most corrupt people are talking about removing corruption," she said.Banerjee also alleged that the "arrogant and destructive attitude" of the a Modi government was destroying the economy of the world's largest democracy."#DeMonetisation has meant complete demolition of the Indian economy," she said.Meanwhile, the Trinamool Congress had decided to organise a three-day protest in West Bengal December 14-16 on the demonetisation issue."We will hold protest marches and meetings in every block of the state. Our party leaders and workers, supporters, and the common people who have been hit hard by the demonetisation move," said Trinamool Secretary General Partha Chatterjee.