Abstract: Civil engineering structures can be damaged due various reasons which include earthquakes, cyclones, blasting, etc. This kind of loading collapses the shape upfront or reasons vast harm to them. When the damage is minor, it is possible to retrofit the structure. A evaluation of the to be had literature has disclosed that umpteen numbers of retrofitting methodologies are available. The study is carried out for the behaviour of G+2 storied R.C frame buildings. Floor height provided as 3 m. And also, properties are defined for the frame structure. Models are created in ETABS software. Various types of load are considered. For static behaviour dead load of the building is considered as per IS 875 Part 1 and live load is considered as per IS 875 Part III, lateral load confirming IS 1893(part 1)2016.Keywords: Retrofitting, Nano Concrete, Glass Fiber Reinforced Polymer