Praveen started the first Organic Mandya store in 2015 on the Bengaluru–Mysore highway. Today, it has grown into a ₹25 crore turnover organic retail chain with eight stores. By purchasing agricultural produce directly from farmers and selling them at 'Organic Mandya' stores, Praveen has not only provided a direct market for farmers but also leveraged technology by introducing an online ordering and traceability app. This digital platform allows customers to track the origin of their organic products and farmers to receive instant payments. Thus, Praveen has successfully built a transparent, technology-driven organic retail chain benefiting both farmers and consumers. Which are the idea fields has Madhu Chandan taken up? Explain briefly the identified idea fields.