H1B, H4 Visa

Thanks to all members who have taken out time to share their experiences.

I applied for Visa interview in Delhi

OFC appointment experience
Took Metro to reach American plaza, it's right next to Metro station.
Mobile phone is allowed, you just have to switch it off. Better to carry all papers in a folder. Don't carry any pen drive or any other electronic item.

I was just asked for my passport, DS160 and appointment confirmation (nothing else). He took my finger prints of both hands, thumbs and clicked my photo and told me not to reach venue too early. Reach only 15 minutes before scheduled time.
Queue In -> Out time was not more than 15 mins.

Consular appointment experience:
Took metro to Race course station, enjoyed morning walk to Embassy. Mobiles or any other electronic items are not allowed, bags are not allowed but they setup a counter across road to collect phones/bags (Rs 50 per phone). I was interviewed by young guy

Me : Good morning officer
VO : Good morning Sir.
VO : You going on H1B
Me : Yes
VO : Are you going for first time ?
Me : replied appropriately
VO : What does your company do ? Clients ?
Me : Explained it's a product company and blah blah
VO : What do you do ?
Me : replied appropriately
VO : What is your role ?
Me : replied appropriately
VO : How much is your salary there ?
Me : replied appropriately
VO : I don't see any issues, I'm approving your Visa.
Me : Thanks a lot.

People outside asked for I797 and stapled it to passport. But VO didn't ask for any other document.