Hey Rakesh

Artificial intelligence and Cuber Security, both have a brilliant scope in the future. Both have a bit of different domain, cyber security deals with Encryption, Decryption and back end encoding whereas Artificial intelligence deals with Machine Learning, Data Analysis, and Visualization. You can consider your interests as well, which you feel more interesting and where you can devote yourself more.

Artificial Intelligence has a booming market in the coming time and it has a lot of opportunities for jobs and start ups. AI is more interesting the Cyber Security as it consists of Machine Learning whose applications are very useful.

All the best