What to do if one is in India during the PERM and I-140 approval process

Question details

I'm on H-1B with employer A and am currently in the PERM process(recruitment done). I'm in India right now and would like to know what happens if:
1) PERM approved and i140 filed; (while I'm in India)
2) Receive PERM audit; (while I'm in India)
3) I-140 approved and Post I-140 approval; (while I'm in India)
Do I need to return to the US in any of the above scenarios? Any worst-case scenarios I should keep in mind?

 

ANSWER
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FAQ Transcript

1. No problem.
2. No problem.
3. No problem.
Do discuss your long-term plans with your lawyers.

Nonimmigrant Visas