H1B, H4 Visa

I will begin with a sincere thanks for all the information I have got from these forums over the last few months and the amount of confidence I have gained through it.
Now, its my turn give back something by sharing my experience and hope this helps in giving some information to the others like me.

My visa was scheduled for 08:15 AM I reached the car parking in the nearby Malcha Marg parking by 7:45 AM. It is few minutes walk from there. I reached embassy by 7:55 or so. I was with my wife who would get an H4.

Went though the security check outside the building showed them the appointment letter. I was asked to be line no. 2 where the preliminary verification of the documents was being done at the windows. After checking and arranging my documents (the way the Visa Officer expect) they handed over them to me and asked me proceed into the main building where again I had to undergo a thorough security check. After that I entered in the main building where firstly I was asked to go for bio-metrics (finger printing). Did that in few minutes. After which I got into the line where I will finally faces the Visa Officer. There about 8-9 people in front me. Finally my turn came and following is my visa interview in details :

Interview Starts : 09:30 AM

VO : Good Morning
Me : Good Morning Mam :-)
VO : Can I have your forms and passports please ?
Me : Sure (handed over the forms)
VO : Can you please put your right index finger on the here please (point to a bio-metrics device)
Me : (Done that)
VO : Thanks, can you please put your left thumb here (asking my wife this time)
My Wife : (Done that)
VO : Thanks, This is for an H1, right ?
Me : Yes mam.
VO : Is this your first time you are applying for a States visa ?
Me : Work VISA, yes, this is the first time mam, but I have got a B1/B2 as well.
VO : Ok. What is your educational background ?
Me : (Explained her my qualifications by telling her my degrees and certifications)
VO : What type of organization is ABC Inc. (my US employer) ?
Me : (Explained her that in few lines)
VO : Currently you are employed in XYZ Ltd. ((my current employer in India)) , right.
Me : Yes mam.
VO : What work you there ?
Me : (Explained her that as well)
VO : Fine. How did get a job in ABC Inc. ?
Me : (Explained her that as well)
VO : (she had a convincing look on her face, which gave me some relief). Is she your wife (now, referring my wife) ?
Me : Yes
VO : When did you get married ?
Me : (Told her the date)
VO : Can I see the marriage certificate please ?
Me : Sure (handed it over to her)
VO : Fine. (and then came the golden words) Your visa is approved and you will get your passport in the next five days.
Me : Thank you very much mam. Appreciate that.
VO : You are welcome.
Me : I just have small query mam, if I may ask please ?
VO : Sure, please go ahead.
Me : I have a valid B1/B2 as well which is valid till next year end. What will happen to that visa ? Will it be cancelled or ... ?
VO : No, you will still have it. It wont be cancelled.
Me : Thank you very much mam and have a wonderful day (and left the counter)

Interview Ends : 09:40 AM

So folks, few points, you may have read them in a lot of forums also :

1. Keep your calm (although I understand how difficult it is, but......you have to do it).
2. Listen carefully to all the questions (as saying I am sorry or pardon me please, can make you nervous and may annoy the officer as well)
3. Answer all the questions clearly, crisply and to the point. No more and no less.
4. And finally which the most important point as well, go prepared and KEEP ALL THE DOCUMENTS (and I repeat ALL THE DOCUMENTS) with you as you may never know which document the officer may ask for and as per Murphy's law he/she will only ask for the documents you don't have. So all you dreams may be affected by just not having one single document which you may have thought is not important. The list of mandatory and supporting documents is available on the respective consulate websites only, so no need to depend on anyone else for that information. Arrange them in proper way (I made indexed files) so that you don't take long when officer demands them. Plus, this leaves a good impression on the officer as well.

Rest, all is fate and destiny my friends. You can't get what is not destined for you and no one can deny you what's there for you. I know its easier said than done, but this is how I think when I don't have control over things beyond a point. I give my best, do whatever I can and then leave the rest to the almighty.

Wish you all the best to all of you and may God fulfils dreams of all of you.