[Dividing the exam in different phases]
Phase I : Exam Pattern + Syllabus + PYQ Overview
Phase II : NCERT’s with short notes + PYQ’s daily [pre+mains]
Phase III : Complete GS-1,2,3 (major subjects) + Optional along with revision+ weekly mocks and answer writing.
Phase IV : GS remaining topics + Prelims remaining topics + mocks + optional revision
Phase V : Only prelims focused - revisions, mocks, focus on imp topics
Need to have a year long integrated test series for both Prelims and Mains.
Every subject must be revised completely with max gap of 2 months , more revision are beneficial.
Start CSAT early around September- October and have thorough practice as the CSAT level has been amped up by UPSC.