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An investigation was made on composites containing AA6082 as matrix and boron nitride/molybdenum disulphide (BN/MoS 2 ) used as reinforcement, which was 3 wt. % of BN and 1% MoS 2 hybrid composite materials were fabricated by stir casting methodology. Using electrical discharge machining (EDM) equipment, machinability studies were examined to achieve an optimal condition of process parameters. Taguchi (L27 orthogonal array) based design of experiments was employed for experiments to examine the in uence of process parameters like pulse on time (Ton), peak current (IP) and gap voltage (V) on material removal rate (MRR), circularity (CIRC), electrode wear rate (EWR), and cylindricity (CYLD) were investigated. Multi Criteria Decision Making (MCDM) methodology was employed for the process parameters while machining AA6082/ 3 wt. % BN/1% MoS 2 hybrid composites. An entropy-based objective weights method was integrated with the complex proportional assessment (COPRAS) approach to assess the most excellent optimal level of process parameters. The entropy (W j ) weights were 0.1285, 0.1002, 0.5707 and 0.2005 for MRR, EWR, CIRC, and CYLD. The optimal conditions are obtained from the COPRAS method of relative signi cance score, and quantitative utility assessment score in the nineteenth experiment having the 15 A, 50 µs and 30 V with the relative signi cance score of 0.0735 with a higher quantitative utility score of 100% is achieved. Using an SEM, the machined surface is analysed for the micro-structural examination. At higher peak current (IP), micro-voids and craters with poor surface nish were achieved.