Hello,

Hope you're doing well.

Reading comprehension : Reading comprehension is all about understanding and analyzing a given piece of writing, and answering questions based upon it.

Verbal comprehension : This is based on analyzing and reasoning. It aims at constructive thinking rather than simple fluency.

Data interpretation: Data interpretation is the interpretation or analysis and then answering questions based on some given data, which may be in the form of bar charts, pie charts etc.

Now, how to prepare for this?

You can start referring to books. I'll recommend you Arun sharma for DI and R.S agarwal for LR. Regularly, you can solve at least 5-10 questions if you are still a student. However, regular practice is needed for better results.

Also, if needed, you can join some coaching or some online classes.

There are various youtube channels uploading really knowledgable videos related to these subjects, they might  also be beneficial for you.