IMPHAL, March 31: The Ministry of Home Affairs (MHA) has ruled out any possibility of extending the "unilateral ceasefire" by the Centre to all the underground outfits operating in Manipur. According to a report received here, the objection to the extension of truce proposed by the People's Front Ministry of the State, was reportedly communicated by the Union Home Minister LK Advani to the State Chief Minister Radhabinod Koijam who is presently camping in Delhi.