Practice is must to develop answer writing skills. Try solving last year questions papers, check our the link to get previous years questions paper: http://www.chanakyaiasacademy.com/previous-year-questions. Try to solve the papers to develop answer writing skills. Check out this other link of Sarneet Kaur Broca, IAS (AIR 39, CSE 2015) sharing tips for answer writing skills. https://www.facebook.com/pg/chanakyaiasacademy/videos/?ref=page_internal