The study proposes the performance of a three-stage hybrid mesophilic anaerobic digester comprising a suspended-growth hydrolytic reactor, a hybrid (suspended-growth + attached-growth) acidogenic down-flow reactor, and a hybrid methanogenic up-flow reactor, for enhanced biogas productionCommingled fruit and vegetable waste (FVW) - shredded to sizes 1 - 4 mm - plus 2.5 L of tap water served as the feedstock in 8 different batch combinations, where the weight of the waste was increased from 3.5 to 7 kg.Decoupling the three major anaerobic steps ensured desirable working pH ranges for the hydrolytic (4.02 - 6.79), the acidogenic (5.69 - 6.62), and the methanogenic stages (6.94 - 7.7).Triplicate studies of each batch type vis-a-vis all three stages were performed.The highest cumulative soluble COD percentage removal of 96.3% was noticed in the case of batch run 5.The maximum biogas yield of 781.8 mL/g CODremoved was corresponding to batch 7, with 6.5 kg FVW, whereas the lowest biogas yield, 735.8 mL/g CODremoved, was corresponding to batch 1.The produced biogas from the methanogenic digester was of high quality (≤; 0.01% H2S) and constituted 58-62% CH4 and 6-7% H2.Microbial community anal. confirmed the presence of pertinent bacterial and archaeal groups, such as Firmicutes, Proteobacteria, Spirochaetes, and Methanothrix, including key homoacetogenic genera, such as Acetobacterium Woodii, Desulfotomaculum, and Desulfitobacterium.