I’m currently in India and my perm was approved in November 2019. My I140 was filed in Feb 2020. An RFE was issued on my application and my employer says they are still working on the documents. I know there is an expiry date associated with the PERM application after 6 months. My question is should I140 be approved before this expiry period or is it sufficient if I140 was applied and I have a receipt number. Please let me know.