Islamabad- Railways Minister Saad Rafique says PML (N)'s core Committee has devised a strategy to address the situation evolved out of the marches. Taking part in a TV programme, he said the core Committee has held three sessions to analyse the demands of the Pakistan Tehreek-e-Insaaf (PTI) and Pakistan Awami Tehreek (PAT). The Minister said negotiations should start with the parties involved within a day or two. He said PTI Chairman Imran Khan keeps on changing his demands and most of these have political motives. PTI leader Shafqat Mahmood said his Party has no intention to march towards Parliament and it has never been discussed in the party meeting.