Padmanabhan, T.Seshadri, T. R.2012-03-032012-03-031987-06-24http://hdl.handle.net/11007/234We show that, the part of the universe that is observable today (in principle), could not have evolved out of a domain which was causally connected in the past. This and other issues related to horizon problem in inflationary models are discussed.enCosmologyInflationary models-universeHorizon problemArticle