I'm getting very low marks in my QA section how to improve quantitative aptitude in 2 months

Hi Aman, ensure you are thorough with the basics of all the core concepts first. If you're well-versed with the basics, focus on practising more questions and the test-taking strategy. While taking the tests (sectionals/mocks), ensure you scan the questions and solve all the easy questions first. Also importantly, leave out the tough questions; you should not be wasting time on tough questions. Practice more, and learn to implement this strategy in your tests.