I am a BSc Computer Science student, I know the basics of Linear Algebra, Calligraphy, Probability Theory and Machine Learning concepts as my major is Machine Learning.
I want to learn Gen AI as soon as possible. Please give me a concrete plan on how to learn this thing and your favorite resources.

Your background is a great start for learning Generative AI . You can quickly understand how such models work and how to apply them to your tasks. First, understand the architectures, then move on to practice. Try generating text, images. Learn from ready-made code, experiment. Do mini-projects. This is the fastest way to get involved.