I Ajay Singhal have secured AIR 1 in GATE 2020, Civil Engineering. Self-study depends upon an individual’s approach and it is recommended to revise class notes each day after the completion of the class. Test series should be attempted just like the actual exam. In addition, emphasis must be laid on revision before appearing for the test series so that you can make the best out of it. Previous year questions also play a major role and you can attempt previous year questions along with test series. I would also say that complete the syllabus once and focus on the revision and notes.