The externally bonded Fibre Reinforced Polymer (FRP) strengthening technique has been increasingly applied in the civil engineering arena to increase the life span of the existing structures. The present study aims to investigate the shear performance of Reinforced Concrete (RC) T-beams with externally bonded Carbon FRP shear reinforcement. Nine full-scale RC T-beams of span 2980mm were fabricated with transverse steel reinforcement. The flange and web cross-sections were 400mm x 100mm and 120mm x 240mm respectively. These beams were tested under four point and three point bending systems. The selective test parameters investigated in this experimental program included (i) longitudinal tensile reinforcement ratio, (ii) shear span to effective depth ratio, (iii) spacing, and (iv) orientation of CFRP strips (0/90 and 45/135 degree). The external CFRP reinforcement strips were applied on the web and soffit of the beam with two-component epoxy system. Experimental investigation illustrates that strengthening of RC T-beams with externally bonded bi-directional CFRP strip significantly enhanced the shear capacity up to 56% over the control beam.