The present invention relates to a novel, synergistic, environmental friendly economical safer, stable herbicidal suspension concentrate formulation comprising of Fomesafen and Quizalofop-ethyl along with other excipients. The formulation of the present invention is used in controlling both the narrow leaves weed - Echinocloa spp., Setaria spp. and Cynodon spp., and broad leaves weed- Physalis spp., Acyranthus spp., Amaranthus spp., and Parthenium spp. of soybean crop without any Phytotoxicity to the crop at the application of least dosage of 400 to 600 ml lacre of the suspension concentrate formulation which contributes to improved agronomic practices and improve crop protection chemical spectrum in the market.