Technex, IIT (BHU) Varanasi | 6,392 followers on LinkedIn. Technex is the annual techno-management festival of Indian Institute of Technology, Banaras Hindu University, Varanasi. | Technex is the annual techno-management festival of Indian Institute of Technology, Banaras Hindu University, Varanasi, India. TECHNEX - The wagon of the most promising technical event of the nation is Back! Get ready to witness one of the best gatherings of renowned Technologists, Entrepreneurs, Venture Capitalists, Personalities and Thousands of students and participants.