Bagasse fly ash, a waste generated in sugar industries has been converted into low cost adsorbent material. Product so obtained has been characterised and utilized for the removal of 2,4,6-trinitrophenol. Investigations include the effect of pH, sorbent dosage, phenol concentration and the presence of surfactants on the low cost adsorbent. Bagasse fly ash exhibits good sorption capacity for TNP and the adsorption data follows both Langmuir and Freundlich models. Thermodynamic parameters indicate the feasibility of the process. The sorption efficiency of the material decreases in the presence of some cleaning agents.