Chandradyoy Chatterjee focused on enhancing physics accuracy in detector simulations by correcting aerogel refractive indices in the eic/EICrecon and eic/epic repositories. He updated the default values in C++ code, ensuring improved consistency between simulated and experimental data for particle identification. His approach maintained backward compatibility, providing a clear migration path and thorough documentation for collaborators. Chandradyoy communicated changes across teams, supporting reproducibility in physics analyses. His work demonstrated depth in detector physics, simulation configuration, and Git-based version control, addressing subtle calibration issues that impact reconstructed Cherenkov angles and overall analysis reliability in high-energy physics software environments.