Can I go to India for stamping while H1B amendment for change of work location is pending?

Thanks Anil.

One important question for me is, since I already got my extension approved and have the i797 in hand, can I go to India and do stamping even if the amendment for change of work location is pending? The employer is same, the amendment is to change the work location for my new client.

Officially, Yes, you can travel and get your H1B stamp based on current H1B extension approval.
But, it is still risky given that your H1B Amendment is pending and I do not recommend travel unless it is absolutely required.

Appreciate your responses Anil. Thank you!