Urgent - H1B - How to apply for a visa interview date?

[weyman]

Hi,

My application for H1B has been granted and now I need to go for the visa interview. I am an Indian passport holder residing in the UK on a working holiday maker visa.

1. Can I apply for the visa interview with the US embassy in London? In the H1B application, I had told that I would interview from India.
2. How do I book the date and time for the interview?
3. What documents should I carry with me?

[weyman]

Any info would be very helpful. Thanks.