A study was undertaken to clarify jute fibre production in relation to chemical composition and low economy using the jute variety BJC-7370. The highest fibre yield (3.2 t/ha), stick yield (6.5 t/ha) and the best quality fibre was found with combination of N100P5K30S10 kg/ha treatment. Quantitative analyses of the chemical composition of the fibre were made from the stage of 15th day growth of the plant upto 120th day. The presence of lignin and formation of fibre were detected at the very early age of the jute plant. Study revealed that fibre reached its optimal values from the age of 60 days. From the economic point of view, it was found that combination of N100P5K30S10 kg/ha showed higher BCR. So, the growers can be considered as the best combination N100P5K30S10 kg/ha for the jute variety BJC‐7370 in terms of BCR, yield and quality.