 Inline compression molding is a technique used to fabricate polymer composites with long dash, short and intermediate length fibres, which reduces cycle time through a single step process that eliminates additional stages of heating and processing. The paper investigates the influence of fibre type and direction, coupling agent, spindle speed, feed rate, drill material and diameter on delamination and thrust force in inline compression mold due to polypropylene composites. ANOVA, signal-to-noise ratio and gray relational analysis were used to analyze the effect of these parameters on residual tensile strength. The results showed that the optimized parameters led to a reduction of 24.7% in residual tensile strength. This article was authored by Sandurani Pailor, H.N. Norisimhamafi and T.N. Srinivasa.