Andhra Pradesh is one of the leading agricultural states in India, with a diverse range of crops, including rice, cotton, sugarcane, and fruits and vegetables. However, like many other regions, Andhra Pradesh faces several challenges related to the agricultural supply chain, like fragmentation of land, a lack of storage and processing facilities, an inefficient supply chain, and a lack of transparency. As a result, we proposed using consensus algorithms to create a blockchain-based query processing system that will provide a secure supply chain for smart agriculture. Can provide transparency, accountability, improved traceability and food safety, a reduction of fraud and counterfeiting, and improved efficiency and cost reduction. Which can help make sure that agricultural products are safe, secure, and of high quality. It has the potential to bring about significant positive outcomes in terms of transparency, traceability, market access, and efficiency, among others. It can change how we grow and eat food and help us build a more resilient and sustainable agricultural system.