Hi
You can prepare for GATE civil by following the steps mentioned below:
1- Know the complete syllabus of GATE for Civil Engineering.
2- Divide the syllabus according to these three parameters - topics you know, topics you know but are not confident about, topic you don’t know.
3- Start with the topics you already know. Revise them well.
4- Move to topics you know but not confident about. Prepare them that well that you don’t have to return to them again.
5- Now practice the topics you do not know at all. Start with the theory part to make your foundation strong and then move to numericals.
6- Study regularly- You will have to study regularly to not lose the grip.
7-Revise- You should revise your syllabus within an interval of every 15 days. You can do this by practising GATE sample papers. You will also be able to analyse your weak areas this way and improve them timely