This gas is made ofup waste organic matters such vegetabble peel, fruit particles , left over food , cow excreta is the main component essential for formaation of gobar gas. the all waste goes under anaerobic decomposition lead to a production of gas and some left outwaste. this left out waste are high quality manure which replenishs the soil naturally. the gas coming out is coleected by the container above the decomposition tank. this gas has 70 of methane it provides more heat per mass , it is pollution free no smoke is relesed and best alternative for LPG