M-Velanmai is an Artificial Intelligence based extension system that can facilitate farmers to instantly access the needed decision support in Agriculture. The M-Velanmai extension services are intended to be delivered through an android application that is bilingual, interactive, and created using machine/deep learning technologies to detect crop damage symptoms instantly & offer technical advisories to the needed farmers through voice/text in major crops of Tamil Nadu. The farmer will be given a provision to record their response regarding the level of satisfaction upon adoption of advisories as feedback for the extension service availed. “M-Velanmai” app. is an interactive, demand-driven and personalized android mobile-based extension advisory system for accessing, appropriate and timely technological information / decision support in agriculture by the farmers of Tamil Nadu. The app is designed to work on android mobile phones. M-Velanmai uses the techniques of artificial intelligence and machine learning to provide two types of support services viz., decision support and information support for the benefit of farmers.