Hello Arjun!

Yes you can study AI in CSE department.Artificial Intelligence is a very broad topic in which you will study Machine Learning and it's Applications course in your third or fourth year.Later you can pursue Master's degree in Artificial Intelligence field.

Hope it answer your concerns.

Hello!

Artificial intelligence is a branch of computer science that aims to create intelligent machines. 

For those who are pursuing computer science course, AI is always considered as a subset of computer science. It is one of the things that are taught in a computer science class.