Hi Chandu,
Preliminary examination has a vast syllabus and if we summarise the entire syllabus in form of sub topics, there will be 7 sub-topics including History(Ancient, Medieval, Modern), Geography(India and world), Polity(including Constitution), Economics(Micro and Macro), Environment, Current Affairs, Current Affairs and Art & Culture.
Its not possible to share notes of entire syllabus on comment section but as to help you, I can suggest important books for every sub topic.
