My recommendation would be to not make notes and rely on readily available free monthly current affairs notes.

The reason I say this is because GK is just 50 marks or 25% of the total marks. The rest 75% comprises of English, Logical Reasoning, Legal Aptitude and Maths wherein the output to input ratio is higher i.e. you can get more marks by putting comparatively lesser effort.

Do not neglect GK but then also don’t overdo it.