Renew Indian Passport after applying for H1B


I have applied for H1B in the month of March. And if every thing goes fine, then I need to go for stamping. Can i renew the passport before stamping (While submitting the application for H1B, I sent old passport scanned pages(at that time it was valid)). So can I carry new passport to Stamping.

Yes, you can have old passport during petition processing and then new one when appearing for stamping.