Dadhich, Naresh2012-03-142012-03-142001-07-01http://hdl.handle.net/11007/1483This is just to point out that the Nariai metric is the first example of the singularity free expanding perfect fluid cosmological model satisfying the weak energy condition, ρ > 0, ρ + p = 0. It is a conformally non-flat Einstein space.enNariai metricsingularity free modelNariai metric is the first example of the singularity free modelArticle