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In this letter we consider two different models of our present universe. Wechoose the models which are consisting different sets of two seperate fluids.The first one of each set tries to justify the late time acceleration and thesecond one is barotropic fluid. The former model considers our present timeuniverse to be homogeneously filled up by Generalized Chaplygin Gas which isinteracting with barotropic fluid. On the other hand, the latter modelconsiders that the cosmic acceleration is generated by Modified Chaplygin Gaswhich is interacting with matter depicted by barotropic equation of state. Forboth the models, we consider the interaction term to vary proportionally withHubble's parameter as well as with the exotic matter/dark energy's energydensity. We find an explicit function form of the energy density of the cosmoswhich is found to depend on different cosmological parameters like scalefactor, dark energy and barotropic fluid's EoS parameters and other constantslike interacting constants etc. We draw curves of effective EoS-s, differentcosmological parameters like deceleration parameter $q$, statefinder parameters$r$ and $s$ with repect to the redshift $z$ (for different values of darkenergy and barotopic fluid parameters) and study them thoroughly. We comparetwo models as well as the nature of dependencies on these models' interactioncoefficients. We point out the particular redshift for which the universe maytransit from a deceleration to acceleration phase. We tally all these valueswith different observational data. Here we also analyse how this value ofparticular redshift does change for different values of interactioncoefficients and different dark energy models.

Interacting Models of Generalised Chaplygin Gas and Modified Chaplygin Gas with Barotropic Fluid