Modern agriculture faces unprecedented challenges including labour shortages, inconsistent irrigationpractices,inefficient resource utilization, and the growing inability to monitor environmental conditions continuously. Traditional farmingmethods rely heavily on manual labour for critical operations such as ploughing, seeding, watering, and soil assessment, resultingin low efficiency and inconsistent crop quality. This paper presents a comprehensive design and implementation of aMultipurposeAgribot—an intelligent, autonomous agricultural robotic system capable of performing multiple essential farming functionsinasingle compact platform. The system integrates Arduino Nano microcontroller, soil moisture sensor, DHT11 temperature-humiditysensor, relay-controlled water pump, DC motors, servo motors, and an LCD display to achieve autonomous operationwithminimalhuman intervention. Real-time sensor data drives threshold-based decision-making for intelligent irrigation control, preventingboth over-watering and under-watering while conserving water resources. The robot performs sequential agricultural tasksincluding automatic ploughing, precision seeding, soil moisture monitoring, environmental tracking, and smart irrigation.Experimental results demonstrate accurate sensor readings, reliable motor control, and efficient water management. Thesystemsuccessfully combines sensing, automation, actuation, and user interaction into a cohesive smart farming solution. Thiscost-effective, scalable platform is particularly suitable for small and medium-scale farms, gardens, nurseries, andgreenhouseautomation. By reducing manual labour dependency and introducing intelligent decision-making, the MultipurposeAgribotcontributes to sustainable agriculture, improved productivity, and economic viability for farming communities. Keywords: Multipurpose Agribot: An Intelligent Autonomous Agricultural Robot for Smart Irrigation, Soil Monitoring, andPrecision Seeding in Small-Scale Farms