The agricultural economy relies significantly on the science and art of plant cultivation, which has a significant impact on economic growth. India has a population that is more than 50% dependent on agriculture. Obstacles in the agricultural sector have greatly slowed this industry's expansion. Farmers’ biggest problem is not being able to handle their crops well and having other people steal their crops, especially when humans and animals are fighting. Integrated systems have been used to elaborately highlight a cumulative approach that applies “Internet of Things” technology, traditional farming methods, and strategies to prevent crop loss. The present work provides an IoT based tracking and alarming system to protect farm from stray animals. The system includes an IoT based arrangement of sensor (RFID tracker) associated in the fence of crop field for getting the RFID data from stray animals, an android app for mobile capable of getting data from sensor. The app processes the data at the mobile phone by performing a computing and then warn the farmer and cattle owner about the location of their animals.