This thesis analyzes the value chain of tomato production in the Kathmandu Valley, involving 62 farmers, 27 output traders, and 18 input suppliers. The study identifies key marketing channels, with 'producer-collectors-wholesaler-retailers-veg mart-consumer' capturing 40% of the market, and reveals challenges faced by producers such as marketing issues and postharvest losses. The findings suggest that enhancing business skills for traders and increasing input costs for farmers can improve the overall value chain efficacy.