In a first major rift within the ruling alliance in Jammu and Kashmir, Chief Minister Mehbooba Mufti walked out of a cabinet meeting today over differences with BJP ministers. The dispute cropped up over the issue of restructuring of Kashmir Police Services or KPS. Ms Mufti, 57, got furious after BJP ministers including deputy chief minister Nirmal Singh objected to the proposal of KPS restructuring. As she left the meeting midway, BJP ministers convened a meeting in the office of the deputy chief minister.