Miss Rukhsar so far ur graduation is concerned u better to go through for such a degree that u can utilize in css as optional subjects that may be from natural sciences, social sciences, arts or from engineering/medical. and in order to improve ur writing skills u go through the DAWN a very popular news paper among css aspirants, and adopt the way of DAWN in ur general writings.. and one thing else that i want u to go through the (DIGITAL CONCISE OXFORD DICTIONARY) its worth is about Rs 5500 to 6000. If u do this im sure within 30 days u will see change in your writings.