The combustion and pyrolysis kinetics of three selected biomasses generated as co-products of the oil and biodiesel industry - namely soya husk (SH), jatropha husk (JH), and Mesua ferrea husk (MH) - using thermogravimetric and differential thermal analysis techniques have been reported. These biomasses were initially characterized for basic fuel property, proximate analysis, ultimate analysis, and fiber analysis. The activation energy calculated using three different kinetic equations, viz. Coats and Redfern, Differential, and Friedman methods for combustion, were found higher than that for pyrolysis for all biomasses at the maximum airflow rate (20ml/min). However, the kinetic parameters are not sufficient alone to explain the suitability of the biomass.