Effect of fire on nature, biomass, CO 2 flux and carbon sequestration potential of under storey grasses in chir pine forests receiving fire after regular intervals along the altitude and aspect was studied. Species composition, biomass, and productivity patterns of perennial grass communities under Chir-pine dominated forests at different altitudes varied greatly with the level of exploitation and fire incidence. The carbon sequestration by the ground floor species also vary with altitude and fire level. The four types of grass species were found in the fire affected forests viz. Chrysopogon montanus Trin, Apluda mutica, Heteropogon contortus and Themeda anathera. Pure grass land recorded the maximum CO 2 mitigation 16.29 mega grams and the CO 2 mitigation increased with the altitude at same aspect. Similarly, CO 2 mitigation increased from 19.29 to 28.22 mega grams per ha in the soil at different altitude. Forest soils carbon increased from 0.94 % just after the fire and (Zero year after fire) and highest after four years of fire i.e. 1.91 %. The total organic carbon increased up to 41.29 mg ha -1 in forest after four years of fire.