In this work, M-LEACH (Modified Distributed Energy Efficient Clustering) protocol, a new variant of LEACH is proposed after survey of LEACH. The proposed M-LEACH is designed for three different segregations for the nodes to elongate the stability & lifetime of the network. Hence, it increases the heterogeneity & energy level of the network. In LEACH, amplification energy is set same for all kinds of transmissions. Using low energy level for intra cluster transmissions with respect to cluster head to BS transmission leads in saving much amount of energy. Moreover, multi power levels also reduce the packet drop ratio, collisions and/ or interference for other signals. The proposed M-LEACH outperforms to existing classical LEACH.