I am studying for ca and in foundation Nov 9 is my exam begins and I want to score more in exam

To be able to score good, you should totally utilise the 4 months study period. The coaching centers make it a point to teach everything required during the 4 month study period. Apart from you revising the topics on a day to day basis, you should also have atleast a month for yourself to revise each topic. Now that there are subjective papers and objective papers, allot each paper an equal amount of time and put up a time table. Focus on Statistics and Logical Reasoning if you are a non maths student. Calculators are allowed to the exam hall which means you should know which formula to use and when to use that.  Have your own revision notes for revising and practising. Understand the topics rather than mugging up because it is more important to understand the concept to translate the subject to the paper in the exam. Practise previous papers.