Mobile Ad hoc network (MANET) is group of self-routing enabled devices that transmit among themselves without any certain network infrastructure. Routing in MANETS has routes between nodes in a topology with many unidirectional links using minimum resources. Since routing protocols have role in MANETS, their energy-awareness make greater network lifetime by efficiently using of the available energy. In all existing single path routing schemes a new path-discovery process is meant once a path failure is detected and it causes wastage of node measure. A multipath routing scheme is the alternative to maximize the network lifetime. Energy, distances are the fitness values used in the previous work to find the optimal path in multipath routing. In this work, it is proposed to use the network resource bandwidth as a fitness value. The calculations for selecting routes towards the destination will be according to energy, distance and also bandwidth. The proposed work is expected to improve the performance of mobile ad hoc networks by prolonging the lifetime of the network. The performance will be evaluated in terms of throughput, packet delivery ratio, end-to-end delay, routing overhead ratio and then compare with the results of existing AOMDV protocol