This present study compares the characteristics of biochars produced by slow pyrolysis at 400-450°C for the biological substrates namely, Coccus nucifera shells (CNS) and Prosopis glandulosa hard wood (PGH). Biochar yield of the biomass substrates varied from 25-28 %. C/N ratio and Cation Exchange Capacity (CEC) was found to be higher in PGH biochar as and cmolkg -1 respectively. | Characteristic study on biochar production from biological substrates by slow pyrolysis for carbon sequestration