namically consistent excluded volume model for hot and dense HG. In our model, we assign a hard core volume for baryons and mesons are treated as pointlike particles. So at higher temperatures, mesons can fuse into one another but baryons occupy space. As µ$_{B}$ increases, we find that the fractional occupied volume R by baryons increases and hence the mobility of baryons decreases fast. The physical mechanism in our model is similar to the percolation model [49] where a first order phase transition results due to ′′ jamming ′′ of baryons in the HG. Thus our finding lends support to the idea of realising a phase transition by modelling the interactions existing in the HG in a suitable way. PKS and SKT are grateful to University Grants Commission (UGC) and Council of Scientific and Industrial Research (CSIR), New Delhi for providing a research fellowship. CPS acknowledges the financial support through a project sanctioned by Department of Science and Technology, Goverment of India, New Delhi. VII. ACKNOWLEDGEMENTS