An urban system is defined as a group of towns within a same space (State or area for example) evolving in interaction, being always set in relations with each other through multiple communication networks and exchanges, thus forming highly interdependent systems. The Indian urban system is characterized by two major breaks in its evolution: on the one hand the Mughal invasion, which installed on entire regular street grid in its whole Western part, on the other hand the settlement that completely reorganized the entire system. Since independence, the system has evolved in a more decentralized way, but continues to be strong inertia of the colonial system. It is now necessary to consider the system at different scales: that of the country (...