— Y -interconnects for VLSI chips are based on the use of global and semi-global wiring in only 0◦ , 60◦ , and 120◦ . Though X-interconnects are fast replacing the traditional Manhattan (M) interconnects, the very recently proposed Y interconnects have been observed to possess certain key advantages. Y -interconnects tend to consume less routing resources than M-interconnects. Unlike the X-interconnect architectures, Y -interconnect architectures support regular routing grid. This is indeed very important for simplifying manufacturing processes and applying the routing and design rule checking algorithms. Several efficient Y -routing algorithms have been proposed in literature. However, to the best of our knowledge, not much have been reported so far in designing algorithms for Y -interconnectbased VLSI module placement and its effects on the congestion or wire-lengths. In this paper, in an attempt to fill the gap in the existing literature, we propose a novel simulated-annea...