Infrastructure development is the backbone of nation's growth. A major contribution to India's infrastructure has come from growth in the construction of residential/commercial buildings and high rise steel is key material used in India's predominantly R construction. Thermo mechanically treated rebars (TMT rebars) impart strength and ductility to RCC structure to withstand various kinds of loads impacting a building. In the demand for making such buildings safer, builders as well as individuals are focusing more on the quality of material used. These days a lot of focus is given in designing structures that have high earthquake resistance. TMT bars can have high resistance to Seismic loads due to its higher UTS/YS ratio. In view of these requirements, MS Agarwal Foundries took initiative in this direction and developed the seismic resistant MS Life 600+ grade/quality TMT rebars. These rebars are produced as per Indian standard IS: 1786:2008. Developing this product, due consideration was given to the cost effective alloy design and optimization of process parameters within Factory capability of MS LIFE 600+. Chemistry design and Colling parameters were major technological intervention that was judiciously used achieving high UTS/YS ration > 1.18 in earthquake resistant TMT-Rebar.