The present investigation aims to design, simulate and fabricate Triple Rings Metasur-face-based Perfect Absorber for C – band and X–band applications. The proposed structure is designed and simulated in CST Simulator software and fabricated hardware of 6x6 array and 10x10 array with the unit cell size 9x9 mm. In simulated results, the maximum absorption for unit cells is achieved for normal EM waves of 96.62% at 7.97 GHz frequency. For the 6x6 Array, the maximum absorption is achieved at 99.04 % and 99.21% at 9.87 GHz and 11.58 GHz respectively with the substrate’s thickness of 1.8 mm. For the 6x6 Array, the maximum absorption is achieved at 97.82% at 7.83 GHz respectively with a substrate thickness of 0.8 mm. For the 10x10 Array, the maximum absorption is achieved at 99.04 % and 99.21% at 9.87 GHz and 11.58 GHz respectively with the substrate’s thickness of 1.8 mm. For the 10x10 Array, the maximum absorption is achieved at 92.49% at 10.84 GHz with a substrate thickness of 0.8 mm. The proposed structure is investigated by varying the substrate’s thickness and the rings’ variation. The experimental results show maximum absorption in the C – and X – bands. Due to these results, the proposed design will be used for C–band and X–band applications.