Hi, Following to this thread - https://www.immihelp.com/experience/289262-L1B-individual-approved-after-Blanket-rejection.html I was...

I have attended blanket visa interview on 13th Nov. Questions asked: 1. What is your designation? 2. Since how long are you working th...

Yes, your choice. you can choose the location close to the place where you live. or you can travel to other locations if earlier app...

It was premium processing.

Why are they sending you there? you can prepare something like this - I work on so and so product for which majority of customers are...

https://www.immihelp.com/experience/297801-L1B-individual-approved-after-blanket-rejection-Part-2.html

You can wait for another 3 days. It there is no response by then, you can approach through the person who filed your case.

Not necessary. But you should prepare your answer for "Why are they sending you?"