The effect of dilute sulphuric acid(1% vv) on treatment of bagasse(particle size of 0.15 mm) is studied by are conducted using 1% (v/v) dilute sulphuric acid and the pretreatment time is varied form 5 to 20 mins. A maximum reduction of 15.71% of cellulose, 18.60% of hemicellulose and 22.4 1% of lignin were obtained for a treatment time of 20 min. The total sugar content is increased by 13.71% due to the possible conversion of cellulose polymers into monomers and dimmers(Fig.lb) The effect of concentrated sulphuric acid(50% vv) on treatment of bagasse(particle size of 0.15 mm) is well studied by conducting experiments are conducted using 50% (v/v) concentrated sulphuric acid and the pretreatment time is varied form 5 to 20 mins.