PM Syed Yousuf Raza Gilani will preside over a high level meeting on worsening power crisis in the country here on Monday. Sources told that Federal Minister for Water and Power, Raja Parvez Ashraf will give a detailed briefing to the prime minister about gap in demand and supply of electricity. According to sources, Federal Minister chaired a high level meeting attended by officials of all concerned departments in which facts and figures for today's briefing were discussed at length. Chairman Wapda, the Deputy Chairman Planning Commission and other officials will also attend the today's session at the PM House.