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An adsorbent prepared from an agricultural waste was studied for its efficiency in removal colour. The process parameters were analyzed like agitation time, initial dye concentration, adsorbent dose, pH and temperature. The adsorption mechanism followed pseudo-first order rate expression and the rate is mainly controlled by intra-particle diffusion. The monolayer adsorption capacity obtained from the Langmuir isotherm plot found to be around 45 mg/g at an initial pH 8, the thermodynamic studies show that the adsorption is spontaneous and endothermic in nature, which was indicated by the negative value of free energy change and positive value of enthalpy change. This study proves that novel activated carbon is a promising adsorbent for remediation of textile effluent in a sustainable manner.