This document describes a border alert system for fishermen using GPS and GSM technology. The system tracks the location of boats using GPS and alerts fishermen with a warning message on an LCD display when they near the border. If the fishermen continue past the border, the system will automatically stop the boat's engine using a relay. The goal is to prevent Indian fishermen from accidentally crossing into Sri Lankan waters and protect their safety. The system components include a GPS module to track location, GSM module to send alerts and location data, microcontroller for processing, engine control unit to stop the engine, and power supply. It provides a low-cost solution to ensure fishermen do not cross maritime borders.