Hello, Swabhi. I´m David, an American writer and editor, a native English speaker with excellent writing skills and years of experience creating texts of all kinds. I can write your 500 words in 1-2 days for 1000 INR, but I do need more information about what you need written. What are the points this letter needs to contain? Do you have an outline or set of ideas to be included? Can you tell me about why you want to study at this school, is there a special teacher or course you like, what are your long-term plans, where or in what type of company or job you would like to work after completing your studies, what would you like to contribute to your country or to the world, etc.? Please contact me so we can get your cover letter written. Thanks, David