Hello Student,

If you’re about to start as a complete fresher please have a look at the below links and get a feel for the topics covered under Data Science, they have good content to refer to

1. NPTEL’s Data Science

2. Udacity Data Analytics

3. Coursera’s Data Science

Generally speaking if one is able to make most of the above resources it will be really helpful to proceed further into NLP, Deep learning etc.

Prerequisites might be understanding of R Program or Python.