Dear Annya, this is the official notification for SBI Clerk 2019 esam. You can access it at: https://www.sbi.co.in/webfiles/uploads/files/careers/12042019_SBI%20CLERICAL%20ADVERTISEMENT%202019.PDF

To give you a gist, the merit list after each round is prepared on the Category you have selected while filling in the application form. There is a statement that says that SBI cannot assume any responsibility of the mistakes in the application form and submission of the application forms after the last date. Now if you select your Category as General during Mains and you qualify under General Category, you will be given a placement under the General Category.