Concrete is the most important material in building which is being used in construction as a strong structural substance that is fundamental to modern civilization and culture. Plain cement concrete has a good compressive strength, but it is brittle and has low tensile strength, minimal crack resistance, and poor toughness. So, Fibers are added to concrete to improve its performance and overcome its flaws. The primary goal of incorporating fibres into the concrete matrix is to improve the concrete's post-crack reaction. In the presence of nanotechnology, the development of construction materials technology, notably concrete, is accelerating rapidly. Nano-silica is one substance that researchers should look into. From locally accessible silica sand, amorphous nano-silica with high reactivity can be produced using nanotechnology. With the rise in demand for construction materials, alternative materials are becoming increasingly important for long-term growth. The use of fly-ash as a partial replacement for cement in concrete is gaining a lot of traction these days, owing to the increased long-term durability of concrete as well as the environmental benefits