The MERN Stack is a widely used technology stack for building full stack web applications. The MERN Stack Training program is designed to provide participants with a comprehensive understanding of MongoDB, Express, React, and Node.js, and how these technologies work together to create modern web applications. The training program covers topics such as setting up the development environment, building RESTful APIs, building user interfaces with React, working with databases using MongoDB, handling server-side logic with Express, and more, enabling participants to become proficient in full stack web development with the MERN Stack.