Jindal Stainless Ltd (JSL) on Friday said it supplied high-strength alloy steel grade to ISRO which was used in Chandrayaan-3 mission. The specialised alloy steel grade supplied to the Indian Space Research Organisation (ISRO), usually imported from several countries, was meticulously developed over a span of three years with the help of an advanced refining process to meet the stringent quality standards and specifications of the crucial project, JSL said in a statement.