Impact of getting a D band

What happens when you get a D band in TCS ? How much percentage of salary gets reduced ? I m a C3A associate and got A band this year. Due to an issue, had a heated argument with my immediate reporting manager and account manager. It was a very bad incident and at the end of it, I asked for release from the project. Now I'm sure, the obvious consequences would be getting a band as low as D. I'm also sure that they wouldn't release me until appraisal next year. So would like the know the percentage of financial impact it would cause, so that I can be prepared.