This research work evaluated a straight forward approach for pulp bio-bleaching by growing the xylanase producing microorganism ( Bacillus pumilus ) directly onto the soda pulp and then comparing the results of this approach with effect of the extracted xylanase enzyme from the same microorganism. The kappa number for the bacterial treated pulp sample decreased by 26.4% whereas after the enzymatic treatment only 10.3% decrease was found. Physical properties of the paper also improved more significantly in case of bacterial treated pulp samples (52.3% increase in the tear factor, 5% improvement in tensile strength) as compared to the paper formed after enzymatic treatment of pulp (27.57% increase in tear factor, 2.9% increase in tensile strength). The results suggest a novel method of pulp bleaching by direct growth of B. pumilus which is much simpler and time efficient method. The paper quality improved considerably following this approach in comparison to the extracted enzyme. • Direct approach for Pulp bio-bleaching was examined. • Bacillus pumilus SSF onto soda pulp was performed. • Xylanase enzyme was extracted from the same strain B. pumilus . • Indirect enzymatic treatment was also assessed. • Both methods for pulp bio-bleaching were compared critically. • Direct SSF approach showed significant results in comparison to enzymatic treatment.