Dholavira, an ancient town of the Harappan Civilization located in present-day Gujarat, is renowned for its sophisticated water management system, which included an intricate network of dams, channels, and reservoirs. This innovative engineering reflects the inhabitants' advanced understanding of hydrology and environmental management, essential for sustaining their arid surroundings. The effective water harvesting techniques employed in Dholavira provide critical insights into urban planning and resource management in ancient civilizations, making it a significant topic for UPSC Prelims GS Paper I, which emphasizes the socio-economic and technological achievements of early Indian societies.