H1-B stamping with two valid I797

[gsaikishore]

I am currently employed with company A and accepted an offer from company B and my H1-B has been transferred to company B.

I have given my resignation at company A with a last date of September 6th and will be joining company B on Sept 9th

I am travelling to India in August for 3 weeks during which I should go for stamping.

My question is, when I go for stamping, should I use the I797 of Company A or B?

Please suggest.

Thank you,
Kishore

[RMH1]

H1-B stamping with two valid I797

Company B