This study involves the production of biofertilizers from agro-waste under semi-solid-state fermentation. The peels from papaya, banana and carrot were used to produce cheap and eco-friendly biofertilizer to be potentially used in agricultural operations. The biofertilizer prepared from agro-waste was applied to the brinjal plants at 30 days post sowing to determine the efficiency of these biofertilizers. PH & potassium content were estimated for all the three biofertilizer samples. It was found that the carrot batch-2 biofertilizer had the highest pH value (5.89), The banana batch-2 biofertilizer had the highest content of potassium with a content of 402.8 mg/l, The concentration of growth promoting microorganisms were determined by plating over different selective media such as Sabouraud dextrose agar for Aspergillus sp., Pikovskya agar for phosphate solubilizing bacteria, Man, Rogosa and Sharpe agar for Lactobacillus sp., Mannitol yolk neomycin agar for Bacillus sp. Followed by colony counting. The performance of Papaya batch-2 biofertilizer was recorded best over the other biofertilizers under study. The maximum plant height (26.66 cm), fresh weight of plant (56.26 gm), no: of leaves (33.66), no: of flowers occurred per week (4.91), no: of fruits (2.33), fruit diameter (1.90 cm), fruit weight (36 gm) were recorded in the plants treated with Papaya batch-2 biofertilizer.