In this paper, we proposed the Bayesian estimation of the parameter and reliability function in exponentiated gamma distribution under progressive type-II censored samples. The Bayes estimates of the parameter and reliability function are derived under the assumption of independent gamma prior by three different methods namely Lindley's approximation, Tierney-Kadane and Markov Chain Monte Carlo methods. Further, the comparison of Bayes estimators with corresponding maximum likelihood estimators have been done through simulation study. Finally, a real data set has been used to illustrate the above study in realistic phenomenon.