Nowadays Distribution networks are growing in complex due to the increase in power demand, variation in load and different kinds of load. So these leads to degradation of quality power to the consumers. The efficient Operation of Distribution networks can be achieved by reconfiguring the network for reducing the line losses and for improving the system reliability. IHSA (Improved Harmony Search Algorithm) provides a better solution as it looks for optimal positions in the distribution system to switch on/off tie lines for optimal power flow and thus reduces the distribution power losses. These tie line switches can be used as emergency service restoration after a fault in the feeder. Autonomously controlling the sectionalizing switches in the distribution feeder makes possible to perform emergency service restoration in a shorter time. © 2017 IEEE.