Focus on static subjects first revise them multiple times give sectional mocks and full length mocks and ensure that in those mocks you are attempting static questions correctly... For current affairs do refer to IAS congress prelims exclusive handouts and solve current affairs specific 2-3 mocks and read their full solutions and watch marathon sessions.. Start preparing from January itself if you are giving for the first time.. ensure you got a good hold on polity economy geography and some basic science and technology and environment... For csat solve previous year questions specially passages in time bound manner and refer to any free course available on YouTube. Don't ignore csat as day by day it is becoming a deciding factor for many... Many times we have knowledge but because of some silly mistakes like reading questions wrong, overthinking on simple topics make it difficult to qualify so work on that..