Secure a 100% scholarship, and be going to do that as Computer Science Engineer, major in Internet of Things (IoT), Cyber Security, and Blockchain, but, it depends upon few specific techniques, including pursuing a strong GPA as well, as merit based scholarships with better grades in grade point average scale, also need higher scores to be scored by one at any entrance examination.
Research the list of universities and institutions offering special CSE scholarships, especially for emerging technologies like IoT and Blockchain. Top universities also offer merit or need-based scholarships, so carefully check their scholarship criteria. You can also boost your profile and become a better candidate by participating in relevant competitions, hackathons, and projects in IoT, Cyber Security, or Blockchain.
Also, take some time and search for various scholarship schemes coming from government institutions or even private corporations/technologies institutions to advance development of technology within those domains. Come up with an appealing application indicating that you're keenly interested in such technologies. Do not miss on your requirements.