Reading about static and legal issues prior to your CLAT 2023 examination will help you in understanding the passage easily.
You might land up in a situation where you are running out of time and you cannot invest the last five-six minutes in reading the entire passage. Here your prior understanding of the legal issue can be of great help.
Read the opinion and editorial section of newspapers, as many passages are derived from such sources.
A study group or someone - even one or two people - with whom you can discuss the different passages will be very helpful. Once you and your study partner have read the same passage, try making up questions and asking them to each other.
Practice grammar from any good class 10 grammar textbook. Some classics, like Wren and Martin’s English Grammar and Composition, are still very very good resources for preparation.
To increase your legal vocabulary, make sure that every time you come across a word you don't understand, whether it's in the newspaper, a textbook, or even while watching a show on the Internet.