Subramanian Sundararajan enhanced the IRDKWindowManager API in the rdkcentral/entservices-apis repository, focusing on improving application readiness and display rendering for client applications. He introduced new API methods in C++ to notify when the first frame is ready, report rendering status, and control Wayland display rendering. By refining the interface design, he enabled downstream applications to monitor startup readiness and manage rendering behavior more precisely. This work addressed the need for more deterministic startup flows, reducing jitter and improving integration reliability. The depth of the changes reflects a strong grasp of API development and interface design within complex display management systems.