Fossil fuels are the major source of energy but the quantities of these are limited and use of these causes greenhouse effect by net addition of CO2 to earth atmosphere and also there is an issue of scarcity of fossil fuels (i.e. Petrol, LPG, and CNG) in the world. Especially in developing country like India, fossil fuel price is also very high. So, current objective is to find a substitute for a fossil fuel. Before the existence of fossil fuel, biomass was the only source of energy which was understood by mankind and utilized as a fuel. Gasification of biomass allows overcoming these issues. Energy extraction from biomass with considering environmental aspect is a challenge. Gasification is thermochemical process which converts biomass into synthesis gas (“syngas”). Syngas mainly comprises of Hydrogen (H2) and Carbon Monoxide (CO), which has the capability to further burnout and releases energy. Syngas can be used for power production, heating application, and liquid fuel production. There are several reactors available for gasification process; present study is focused on downdraft gasifier reactors. It is focused on the production of syngas and effect of various parameters like equivalence ratio, the moisture content of biomass wood used on a composition of syngas. Therefore, the intention is to produce a substitute gaseous fuel syngas from biomass by using fixed bed downdraft gasifier.