If your employer is changed, you need new H-1b.
You may keep your original I-140 for CSC to processing without filing new petition with TSC. However, if you file new with TSC, you will have to withdraw the one with CSC. You cannot apply same I-140 with two different service center, that's called "immigration window shopping" which is prohibbited.
Hope that will help you.
You may keep your original I-140 for CSC to processing without filing new petition with TSC. However, if you file new with TSC, you will have to withdraw the one with CSC. You cannot apply same I-140 with two different service center, that's called "immigration window shopping" which is prohibbited.
Hope that will help you.