<p><?tk 2?>This study examines the impact of emotional intelligence (EI) in the domain of leadership effectiveness and organizational performance, and how EI makes a difference in choices that are made within the framework of communication and engagement of employees. Using quantitative research, structured questionnaires were used to collect primary data from 217 leaders from different organizations. Random sampling was used to ensure the sample is truly representative. Data were analyzed using SPSS and AMOS with correlation, regression, ANOVA,<i> t</i>-test, and Structural equation modeling (SEM). The results indicate that emotional intelligence significantly enhances leadership effectiveness by improving communication, decision-making, and conflict resolution. Employee engagement was found to mediate the relationship between EI and Job satisfaction, where Job satisfaction functions as a key outcome variable but also contributes to engagement in the pathway. Organizational Culture was modeled as a contextual moderator, influencing the strength of the EI Performance relationship rather than serving as a direct dependent construct. The findings underscore the importance of incorporating emotional intelligence training in leadership development programs. Organizations that invest in building EI competencies among leaders are more likely to foster a positive work culture, improve employee motivation, and enhance overall productivity. This study provides empirical evidence on the strategic role of emotional intelligence in leadership and performance, offering practical insights for organizational development and sustainable workplace growth.</p>