H1B, H4 Visa

Here is my H1-B visa stamping experience in Mumbai. Visa is for non-IT, Mechanical Engineering (M. S. from US).
First of all, Thank you very much immihelp for providing guidelines for getting US Visa. Thank you all for posting their experiences. It was very helpful.
OFC on Dec. 17 2012 @ 4 pm and Visa appointment on Dec 18. 2012 @ 7:45 am in Mumbai.

{OFC pretty straightforward. But unfortunately, I made a severe mistake while completing DS-160. In place of Given name I put my first name only (instead of First and Middle name). However on passport the Given name was my Fist and Middle name. The passport name and DS-160 name should match. The person who was checking my documents for OFC notified me about that. Fortunately, I reached OFC @ 3:15 pm and he said I have 45 minutes to change the DS-160. He told, to go outside and I will get help from somebody to rectify the error. I went outside and an autorickshaw guy asked me about modifying DS-160 and took me to the net-cafe, where they told me to pay about 400 INR for using their system and a guy would help me with DS-160. I was worried that I might have to fill new DS-160 and reschedule my appointment. But the net-cafe guy assured me that he would take care of everything. I was sitting next to him and we filled new DS-160 with almost all information copied from the previous DS-160. He updated DS-160 and printed new DS-160 confirmation and updated Appointment letter (with new DS-160 confirmation # on it). I rushed back to the OFC and reached their @ about 3:45 pm.}
 Everything went smooth after that on that day.

Visa appointment Dec 18, 2012: Reached @ 7 am. Stood in a line for 7:45 am appointment. Went through procedure mentioned by others in their experiences. Got the token number and waiting for my number.
I have taken almost all the documents including my thesis copy and what not. I was completely confident and positive about the interview.
I and The visa officer greeted each other. I handed him Passport and I-797 Approval Notice. For some reason he thought I am going for F1 and asked me about why am I going to this university and why am I going to US? I just smiled at him, he immediately looked at I-797 and realized that I am going for H1-B. I responded him why I am going to US.
Here is the brief discussion we had (Questions and Answers):
Q: What your company do (manufacture)?
A: Briefly informed about company's products.
Q: What do you do (job role)?
A: A: Briefly explained my job role and responsibilities.
Q: Where will you work?
A: Answered properly. (I am already working there since 12 months).
Q: Are you single or married?
A: Answered.
Q: How much the company pay you?
A: Told my salary USD/year.
Q:Can I see your recent Pay Stubs?
A: Sure (Showed all previous pay stubs).
He said "I approve your Visa". 'Give me just 1 second to update that into my system and you will get your passport in 3 business days'. He was done in few seconds.
I Thanked him and wished him Happy New Year in advance and that's it.

{I intentionally put Passport delivery method as Pick Up from Pune location to avoid delays because of Blue Dart and stuff. I read it in few experiences about delayed passport deliveries and difficulties in tracking passport.}

I got email on Dec. 20, 2012 @ 5 pm stating that passport is ready for pick in the mentioned hours @ location requested. I picked up my passport from Sohrab Hall on Dec. 21, 2012 by showing Photo ID and submitting its photocopy and also took Appointment letter (as mentioned on http://www.ustraveldocs.com/in/in-loc-passportcollection.asp).
Good Luck to all potential H1-B candidates.
Please feel free to email me and ask questions if you have.
Cheers!