Regarding H1B visa stamping


My H1B visa has stamped on Jan’15 for Client A up to 30th Sep’15. After that I never visited USA. Now I am going another Client B for which H1B Amendment along with extension has been done. As right now I am India, Shall I need to go for Visa stamping again or Can I travel to US with earlier stamped visa (which is valid up to 30th Sep’15) along with latest original I-797. Please help me.

Literally, if you travel before 30th Sep 2015 then you would not require to go for stamping again but as it is already very less time left on your visa expiration, I think your employer would recommend you to go for stamping again.