This research paper examines the green marketing initiatives undertaken by Fast-Moving Consumer Goods (FMCG) companies in Northern India, with a specific focus on Haryana, Punjab, and neighbouring states from 2018 to 2022. Using primary data collected through consumer surveys, retailer interviews, and direct observation methods across urban and rural areas, this study evaluates the effectiveness, market penetration, and consumer reception of green marketing strategies in the region. The findings reveal distinct patterns in sustainable product adoption, eco-friendly packaging preferences, and response to green marketing campaigns among northern Indian consumers. Statistical analysis demonstrates significant variations between urban and rural markets, with particularly strong uptake of sustainable products in semi-urban areas of Punjab and higher price sensitivity in rural Haryana. The research highlights region-specific opportunities and challenges for FMCG companies implementing green marketing initiatives in Northern India.