H1B visa stamping thru Dropbox after receive I797B

USA
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Hi @Anil_Gupta,

My H1B visa amendment approved recently thru consular processing and received I797B instead of I797. As I have my consulate as ‘Chennai’ during RFE, I have two below questions regarding my stamping,

  1. Am I eligible for Dropbox option to do visa stamping?

  2. am I eligible for any other consulates other than Chennai to go for stamping?

Thanks in advance!.. your response is highly appreciated…

Thanks
Saravanakumar A S