H1B, H4 Visa

I attended the VISA Interview at U.S. Consulate, Mumbai today (2nd Novemeber 2015). My VISA Interview was scheduled at 9:00AM.
I reached the place 1 hour before the interview time. I saw a long queue outside the consulate. I also joined the queue silently without asking anyone. The queue was not moving at all but after 5-10 mins the queue suddenly moved ahead very fast. I saw few ladies coming near the queue and asked us to keep our passports outside. Those ladies scanned our pasports with a small maching (similar to a pager) and signalled to get inside.
I reached the place where there were some seating arrangements. All the people were waiting for the door to open. After few minutes, the door opened and people began to enter the room. People were instructed to put their belonging (Wrist watch, documents, wallet etc.) in a plastic container for security check. After the security check I again entered a place where people were waiting for their turn to enter the main interview premise. One guy was carrying the US Rights pamphlet and distributing to the H1B candidates. We all sat and waited for our turn. We then moved inside the main Interview hall. After entering the premise, We joined a queue where 2 counters were scanning the passports. One by one we reached that counter where we were asked to put right hand four fingers on the scannig machine. After the finger scanning, we were handed our passports back and asked to join another queue which was for the main VISA Interview.
While in the queue you can see almost all the counters where people will be interviewed.
After some time I reached the end of the queue where one lady was instructing us to move to certain counter no. I was asked to move to Counter no. 30 where one young lady officer was taking VISA Interview of a guy. I waited for the interview to get over. The guy left and VISA Officer called me for the interview.

VO: Good Morning
Me: Good Morning, How are you?
VO: I am fine, thanks. How are you?
Me: I am fine, thanks. I handed over the Passport and I-797B Original
VO: What will be your Position in the this Company?
Me: XYZ
VO: What will you be doing in this company?
Me: I will be developing the software for this company.
VO: Can you please brief me about the Project?
Me: I explained about the project in 1-2 lines.
VO: Still staring at me? (Expecting some more description)
Me: I then took a deep breathe and started explaining each and every component. I also took some description from my current project I am working on in the current company as both the projects are similar.
VO: Have you gone through the US Rights pamphlet? (pointing the finger at pamphlet pasted on right corner of the glass.)
Me. Yes,. I did.
VO: Which city you will be travelling in US?
Me: XYZ City, ABC State.
VO: Have you ever been to outside India?
Me: I am Sorry, I have never been to anywhere.
VO: That's OK. Not an issue. What will be your Salary?
Me. Something Thousand, Something Hundred US Dollar per Annum.
VO: OK, your VISA has been approved.
Me: Thank you and left the place.

It took me almost 1 hour 45 minutes to get out after joining the very first queue.