The present study employs the Life Cycle Assessment (LCA) methodology to evaluate the environmental impacts associated with greenhouse gas (GHG) emissions and emission intensity (Ei) from milk production, considering a system boundary extending from “cradle to farm gate.” The research was undertaken to estimate the percentage contribution of various farm activities namely enteric fermentation, fertilizer application, electricity and diesel use, and dung management to the total global warming potential (GWP) across crossbred cattle farms in eight districts of Haryana. The farms were categorized into three production levels: low, medium, and high. Results identified enteric fermentation as the principal hotspot of GHG emissions, followed by emissions arising from fertilizer use and electricity consumption. No significant differences were observed in enteric emissions among the three production groups. However, statistically significant variations were found in the emission percentages attributable to fertilizer, electricity, diesel, and dung management. The findings underscore the need for targeted mitigation strategies to enhance the environmental sustainability of milk production systems in the region.