In order to apply for an SBI Credit Card, you can either walk into the nearest SBI branch and submit the application along with the required documents. You can also apply online on their website. Once you have applied, it is also possible to track the status of your credit card application online. Typically, it takes up to 21 days for your credit card application to be processed.
Make sure that you only apply for a credit card that you are eligible for – check if you qualify on the website. Also, generally it is good to have a credit score of 700 or above to avoid rejection.