A modular solar dryer with interlocking panels was designed, developed, and tested for drying of agricultural produce. The dryer was constructed using polycarbonate sheets for easy assembling and disassembling. Performance evaluation of the dryer included no-load and load testing for the measurement of changes in temperature, relative humidity level and thermal efficiency. The no-load test showed that the dryer maintained significantly higher temperatures (15-20°C more) with lower relative humidity (20-30% less) than ambient to ensure effective moisture evaporation during drying. During load testing, the dryer achieved highest drying rate at the initial hours, which gradually decreased as moisture content reduced. The top tray exhibited better drying performance due to greater heat exposure. The final moisture content reached safe storage levels within a shorter drying period in days. The enclosed dryer structure prevented product contamination, which helps in improving product quality. The results suggest that the modular design of the dryer provides flexibility, making it suitable for small-scale farmers and food processors. The study demonstrates that the developed solar dryer is a sustainable and efficient alternative for agricultural drying, ensuring better energy utilization and product quality.