Henil Patel worked on the lfortran/lfortran repository, focusing on enhancing the robustness of Fortran I/O handling within the compiler. He addressed the processing of forward references to FORMAT statements that appear before READ statements, a nuanced aspect of Fortran parsing. Using C++ and Fortran, Henil introduced targeted test coverage to validate correct input parsing and fixed a related bug, thereby reducing the risk of regressions in the I/O path. His work improved the test suite for edge cases in Fortran I/O, laying a foundation for safer future changes and contributing to the overall correctness of FORMAT and READ interactions.