TechX-Mumbai is an advanced event management platform built using the MERN stack. Organizers can add tech events such as meetups and hackathons, with the admin ensuring event legitimacy and approving speakers and judges. Users can apply as volunteers and purchase tickets for paid events securely through the integrated Stripe API. The platform utilizes the Google Maps API for location autocomplete and displaying event venues on maps. Additionally, nodemailer facilitates email communication, while Auth0 handles user signup and authentication.