This research paper investigates the sociocultural factors influencing marital satisfaction in modern India, focusing on how traditional and emerging sociocultural dynamics shape marital outcomes in the context of rapid societal changes. Utilizing a descriptive, cross-sectional survey design, the study collected data from 2,000 married individuals across various Indian states using structured questionnaires. The methodology included stratified random sampling and data analysis through Structural Equation Modeling (SEM) to assess the direct and indirect effects of sociocultural variables on marital satisfaction. Key findings indicate that egalitarian gender roles, economic stability, and effective communication significantly enhance marital satisfaction, while urbanization and traditional family structures have complex influences. The study underscores the buffering role of traditional family support against the stresses of modernization. The results highlight the importance of tailoring marital counseling and interventions to regional and cultural specifics, suggesting that policies aimed at enhancing marital satisfaction should consider the broader sociocultural context. These insights are crucial for stakeholders aiming to develop programs that foster healthier marital relationships in a culturally diverse society like India.