Worried About Fake Relieving Letters? How Can Companies Spot the Real from the Fake?

I have been terminated by a company due to non-performance in sales. The company has provided me with a relieving letter. However, I have created a fake relieving letter with the help of a friend. How can the new company verify the authenticity of my letter and distinguish between the real and the fake one?

My suggestion is not to follow the practice of creating your own relieving, experience, and salary statements. You will lose the job if verification fails.