Anirban Kasturi overhauled electron identification and data processing in the IMSA-CMS/CMSAnalysis repository, focusing on integrating MVA-based Fall17 V2 electron ID working points and streamlining NanoAOD event handling. By removing the HiggsSelector and shifting particle selection logic into NanoAODEventFile, Anirban enabled more refined and maintainable electron data processing. The work included hardening the data pipeline by refining skip-file logic, which improved reliability and downstream analysis readiness. Using C++ and leveraging skills in data analysis and particle physics, Anirban delivered a focused, in-depth feature that elevated electron data quality and supported more precise physics analyses within the project.