The Assam government caught unawares by the Centre's reported move to extendthe Nagaland ceasefire to three neighbouring states of Assam, Arunachal Pradeshand Manipur, has decided to lodge a strong protest with New Delhi over theissue.Assam Chief minister Tarun Gogoi had told newspersons immediately after beingsworn in last Friday that his government would oppose any such move by theCentre.