If you have joined Dams, solve their CRS/Tests/TnDs. Same goes for other coaching.
For subjectwise solving this is the entire list of books which you can solve from. These books are also good for theory in case someone is not going to any coaching.
Remember, solve last 2–3 years questions only, not more than that. If you are currently in third/fourth year, means you have time, so while you solve, make a list of frequently asked topics while you solve MCQS.
Topics are repeated, not questions. So those topics you need to study in detail. The number of repeat questions is less. But Mcq solving needs to be done, in order for better retaining of the subject.
While you solve, mark those which you didn’t know or marked wrong. Mark those which have been asked many times. So at the time of revision you can revise only the marked questions