I have a valid H1B visa but not stamped yet because I have not traveled to India since then. I was invited to speak at a conference in Spain next year. Am I eligible to obtain a Schengen Business Visa? Is it true that after the conference, I'm afraid I can not go back to the US without stamping? Can I do it in Spain or do I have to travel to India, have it stamped and enter the United States? Please, give your opinion?
thank you so much