The study evaluated the impact of different fertility levels and water-soluble fertilizer (WSF) treatments on brinjal growth, yield and quality. The results showed that 80% RDF (f1) significantly improved plant height, number of branches, fruit yield (289.43 q/ha) and soil nutrient levels compared to 60% RDF (f2). Among WSF treatments, 1.0% WSF at 20-day intervals (s3) produced the highest growth and yield, with a fruit yield of 308.12 q/ha. The combination of 80% RDF and 1.0% WSF at 20-day intervals (f1s3) yielded the best results, with a plant height of 76.43 cm and 346.61 q/ha yield. In conclusion, applying 80% RDF along with six foliar sprays of 1.0% WSF at 20-day intervals was found to be the most effective for improving brinjal growth, yield and quality.