Mavitha Shehar enhanced the MavithaShehar/pickn-go-backend repository by delivering three core backend features focused on license verification, vehicle management, and testing reliability. Using JavaScript, Node.js, and Express.js, Mavitha clarified the license verification workflow, introducing a dedicated route and expanding access control so that admins and owners can verify licenses directly. Vehicle management capabilities were broadened, allowing customers to add vehicles and promote themselves to owners, streamlining asset administration. Additionally, Mavitha strengthened the testing framework by adding image handling validation, which improved test coverage and reliability. The work demonstrated thoughtful backend design and addressed key operational requirements without introducing bugs.