The critical importance of HR practices has brought about revolutionary changes in the sales performance of India's highly competitive automobile dealership industry, owing to their impact on increasing employee motivation, skills, and goal accomplishment. The present research focuses on the influence of various factors like training programs, effective, recruitment, performance appraisals, incentives and communication on sales performance in ABT Maruti Suzuki NEXA, Chennai. Chennai. A structured questionnaire was employed as an instrument for data collection, and the gathered information was subjected to statistical analysis. It was found that there exists a significant positive correlation between sales performance and performance appraisals along with training, making HR practices important predictors. Besides, the role of recruitment, incentives, and communication cannot be ruled out in supporting sales performance, while demographics exhibit little influence in moderation. The most important predictor is performance appraisals, which finds the importance of proper appraisal processes. In order to improve sales performance, it is advised that dealerships emphasize appraisal-based incentives, practical training, recruitment, and feedback processes. The study provides valuable knowledge and insights on HR sales dynamics and suggestions for improving efficiency.