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The cyclotron line feature in the X-ray spectrum of the accretion poweredpulsar Her X-1 has been observed and monitored for over three decades. The lineenergy exhibited a slow secular decline over the period 1995-2014, with apossible (not confirmed) indication of a reversal thereafter. Recent works haveshown that the temporal evolution of the line energy may be modelled as aflattening after an earlier decrease until MJD 55400 ($\pm200)$. In this work,we present the results of ASTROSAT observations in the context of earlier dataand offer a common interpretation through a detailed study of temporal and fluxdependence. We find that the variation of the line energy does not support anupward trend but is consistent with the reported flattening after an earlierdecrease until MJD $54487^{+515}_{-469}$.

Time Evolution Of Cyclotron Line of Her X-1; A Detailed StatisticalAnalysis Including New ASTROSAT Data