This document proposes an ICT-based agro advisory system to address the needs of farmers and stakeholders in the agricultural community. It would provide agriculture and weather advisory information through various delivery channels. The proposed system includes a master data management system, information dissemination system, and end user engagement system. It describes the novelty of using open source technology, a web-based application with 3-tier architecture, platform independent language, and API integration. The document also discusses models for revenue generation including transaction-based and content-based approaches. It proposes making the system sustainable and scalable by developing farmers' databases, distribution networks with partners, and content sourcing from various stakeholders.