Trinamool Congress Chief Mamata Banerjee said that there is a need to further tone up the party organisation and added that she is not happy with the performance of some party workers. Mamta told a meeting of her party MPS, MLAs, councillors, zilla parishad chiefs and panchayat samiti members in Kolkata that she will not tolerate anyone using the party for personal business. She urged party leaders and workers to keep close contact with the people.<br/>