Field research was carried out during the Kharif seasonin2020 in a randomized block design with three replications involving eleven treatments to determine the effect of liquid biofertilizer on the growth and yield of ragi. The factors considered forthe study comprised different liquid biofertilizer practices. A common recommended fertilizer dose of 40N: 20 P2O5: 20 K2OKg ha-1 was used. The maximum dehydrogenaseactivity (g TPF g-1 dry soil 24 h-1), gross return (89824 ha-1), net return (62859 ha-1) and Benefit-Cost ratio (2.33) were gained under T1-100% RDF + Seed treatment with liquid biofertilizer (5 ml kg-1 Seed), followed by soil application of liquid biofertilizer (2.5-liter mix with 500kg/ha Farm Yard Manure applied in-furrow), under finger millet. The minimum gross return (36203 ₹ ha-1), net return (14703 ₹ ha-1), and Benefit: Cost ratio (0.68) was obtained under T11-(control) under finger millet crop.