Trinamool Congress members staged a dharna in the Parliament complex on Friday demanding center's intervention to stop ongoing violence in West Bengal. <br/> <br/>Talking to reporters, Trinamool MP Sujit Bandopadhyay demanded for the Home Minister Mr P Chidambaram to visit the naxal hit districts of the state and take a stock of the situation. <br/> <br/>The MPs alleged that the state government has failed in controlling atrocities against minorities and weaker sections in the state. <br/>