There are some prerequisites to learning data science. Before jumping into the ocean of Data Science, one should have programming knowledge, preferably object-oriented programming, knowledge of some statistical concepts before looking for any training. If you are a beginner and want to know more about Python and R programming language then do refer the following video tutorials:
You can get a hands-on project by referring to Data Science course in Hyderabad which will teach you Data Science from scratch to advance.
And if you are more into videos then do check out the following video tutorial which will help you in mastering in the field of Data Science:
If you want a detailed explanation of Data Science then do check out Data Science tutorial which will help you in understanding DS.