The carbon, water, and nutrient footprints of major crops in the Indo-Gangetic Plains (IGPs) show significant variations across different agro-climatic zones, primarily driven by distinct environmental conditions and farming practices. In the western IGP, characterized by semi-arid conditions, crops like wheat and rice typically have higher water footprints due to heavy reliance on irrigation, while their carbon footprints are elevated due to intensive mechanization and higher fertilizer use. The central IGP, with its more moderate climate, generally shows lower water footprints for the same crops, but variable carbon footprints depending on management practices. The eastern IGP, receiving higher rainfall, demonstrates the lowest water footprints for major crops, particularly during the kharif season, but often shows higher nutrient footprints due to lower nutrient use efficiency in waterlogged conditions. Rice-wheat systems, the dominant cropping pattern across the IGP, show particularly high water and carbon footprints in the western zone, moderate in the central zone, and relatively lower in the eastern zone, though this varies with management practices. Nutrient footprints generally increase from west to east due to decreasing nutrient use efficiency, influenced by factors such as soil type, rainfall patterns, and management practices. The footprints also vary seasonally, with rabi (winter) crops typically showing lower water footprints but higher carbon footprints due to increased mechanization and residue burning practices.