This invention relates to a pyrotechnic composition for energy rich propellant comprising boron powder as metal fuel present in an amount of 5 to 50% by weight preferably 25 to 40% by weight, potassium nitrate as an oxidizer present in an amount of 95 to 50 % by weight preferably 75 to 60 % by weight, remainder being a binder as solution of plasticised ethyl cellulose n toluene which is 10 % to 12 % by weight comprises of ethyl cellulose with diethyl phthalate taking 70 to 80 % preferably 75 to 77.5 % by weight of ethyl cellulose and 30 to 20% preferably 25 to 22.5% by weight of diethyl phthalate.