The rapid adoption of electric vehicles (EVs) in developing cities poses significant challenges to power system stability and reliability. This paper explores the potential impacts of large-scale EV charging on urban power grids, particularly in near-future scenarios where EV penetration is expected to rise. Key issues include increased peak load demand, voltage instability, and transformer overloading, which are exacerbated by aging infrastructure and unpredictable charging patterns. The study reviews existing literature on strategies such as smart charging, vehicle-to-grid (V2G) technologies, and demand response programs that can mitigate these effects. It also highlights the potential for integrating renewable energy sources to optimize grid performance and reduce emissions. Furthermore, policy implications are discussed, emphasizing the need for grid modernization, government incentives, and dynamic pricing mechanisms to support grid-friendly charging behaviors. Through a comprehensive analysis, the paper provides insights into how developing cities can prepare for the challenges and opportunities presented by the growing EV market, ensuring a resilient and sustainable power system.