How can remove the re entry ban

Neeraj, I'm afraid there is no way to eliminate it. You have to wait for five years and then re-enter.

If you receive a 5 year ban from entry into China for reasons, you have to wait for 5 years or more and then re-enter. Also, you should apologize to locals and to immigration inspector including police officer saying ‘Sorry, I won’t do that again and never overstay again’ in Mandarin.