I was working in H1-B with client ABC from May 2013 to Oct 2015. Before expiring of my visa in Oct 2015 H1-B extension ( first ) was filed in Apr 2015. Then I returned to India in Oct 2015. At the end of the Nov 2015 I received my H1-B Extension petition during my stay in India. Its Valid till 21st Apr 2016.
Now in month of Feb 2016 my company did the stamping for H1-B Extension for same ABC client in India. Suddenly due to los of project I could not travel USA with H1-B extension. Now my employer is going to file Amendment cum Extension ( with premium processing ) for new client XYZ. Below are my questions :
Can I travel with old visa validity i.e. 21st Apr 2016 for new client once I receive only the Acknowledgement notice.
Or I have to wait till new Approval Notice received and completing the stamping process.
Client is expecting me end of Mar 2016. So any expedite process for this.