Akshat Bhatnagar enhanced the Real-Dev-Squad/website-backend by improving the reliability of its Task Request API. He refactored the backend logic in JavaScript to ensure that invalid task request IDs now return a proper 404 status code, aligning the API with RESTful standards and reducing client-side confusion. Akshat updated both unit and integration tests to verify this new error handling behavior, increasing overall test coverage and reliability. His work focused on robust backend development and error handling, addressing a critical bug rather than adding new features, and demonstrated a thoughtful approach to API development and testing within a production environment.