Hello, kindly specify about what exam is your query about so that we can guide you further. In general for quantitative aptitude being thorough with your class 10th mathematics formula will be the first step. Then start practicing the previous year questions or from a workbook. Do not get struck with a single chapter itself for more than 3 days. Include other subjects too so that you wont be getting bored easily. For current affairs if you have been following the newspapers regularly, extra efforts wont be necessary but in otherwise follow any of the monthly current affairs capsule either in pdf or question format whichever woks for you.

Hope this helps.