For upgradation of roads and to reduce the cost of bituminous road numerous materials are used one among them is coconut shell charcoal ash which is used in flexible pavements as a filler. The primary impartial of this study is to match the results produced by using filler such as fly ash with coconut shell charcoal ash in bituminous concrete. Coconut shell charcoal ash contain the properties like absorption, light weight, low cost, resistance to freezing, resistance to crushing which is the most significant factor for the road pavements.in this study test was performed like Marshall stability test stability, flow value, VMA and void ratio. In this research the Marshall stability increases with the increase of filler in the Marshall cake. The flow value increases with the increase of coconut shell charcoal as a filler and decreases the void ratio and VMA with the increase of filler. The different percentage of coconut shell charcoal ash are 1%, 1.5%, 2%, 2.5% and 3% are used in test with 5.5% bitumen.