Shockwave turbulent boundary layer interaction (STBLI) is a widely occurring phenomenon in high-speed compressible flows and is essential to be analyzed due to its impact on the structural integrity of the vehicles. STBLI often involves flow separation associated with an additional shock system, making it more complex and severe, thus requiring control. In this context, a numerical study was carried-out using the RANS( \(k-\omega \) ) model to understand the controlling aspects of boundary layer bleeding using suction on an incident shock-induced separation at \(M_{\infty }= 2.3\) . The importance of suction location with reference to the interaction region was explored using three bleed positions: upstream of the interaction, the onset of interaction, and inside the interaction zone. Two different sets of simulations, the baseline case (without suction) and the control case (with suction), were performed to signify the effect of suction on the interaction. Simulations were 2-dimensional, and bleed was achieved through slots. From the results obtained with bleed slots, suction in the interaction zone was found to be effective in minimizing the separation region compared to upstream and onset slots. Suction in the interaction zone resulted in a normal velocity of approximately twice the velocity in other cases. Interaction downstream locations influenced by suction were found to have fuller velocity profiles (thus more resistant) than those without suction. It was also observed that along the suction slots, stream-wise velocities were significant and can not be neglected. Upstream and onset suction were found to have similar effects due to exposure to the same freestream conditions. The present study shows that the boundary layer suction has a significant influence on the separation based on its position and requires 3-dimensional, high-fidelity simulations for detailed understanding.