The Centre has convened a high level meeting of four Maoists infested States in Kolkata today. The Union Home Minister Mr P Chidambaram will preside over the meeting . Chief Ministers of West Bengal, Bihar, Orissa and Jharkhand will be present at the meeting. AIR Kolkata correspondent understands that the crucial meeting is likely to take decision on joint operations involving neighboring states against Maoists and exchange of more information and coordinated efforts to combat Maoist menace.