NIE Submission: Valid H1b stamp (previous employer) & I797 approved (present employer)

Looking for information on NIE application. I have a valid H1B visa from my previous company & an approved I797 from my present employer. Can I apply for NIE under my present condition and what documents do I need to include? Any help would be appreciated.

https://in.usembassy.gov/visas/national-interest-exception-frequently-asked-questions/