1. To start Artificial Intelligence, you must have knowledge of Data Science. So, start with Data Science:
2. You must know Machine Learning techniques, so for that watch this Machine Learning comprehensive tutorial:
3. Finally, you should have a thorough knowledge of neural networks and deep learning algorithms, so go through this tutorial for learning Deep Learning thoroughly:
Also, for getting a job in the field of Artificial Intelligence you should be a professional in AI and you need to have a certificate for proving it, so, you should go for an Artificial Intelligence course to make your career rise to the next level.