Business Visa - B1

Thanks to immihelp and the users who shared their experience here. I went through all of the pages and got very good answers to VO's question.
I got Visa approved on 6th of August @ Delhi Embassy. It was my first attempt and i was really scared of getting rejected(this is not the end of the world :-)). While filling DS160 I filled 1 month duration but later on i came to know that it should have been 1~2 weeks only for B1. (if you have applied for 1 month then visa rejection chances are very high else you should have a strong convincing reason for 4 weeks). So I practiced all answeres well before interview.

I was wearing formal plain sky-blue shirt and jeans along with sports shoos(No Tie). I tried to wear my company tag(As i read some experiences) but security persons asked me to keep it in pocket :-(.
After all checks and processing i got counter number 11 for my interview. A lady was sitting there. I was standing in queue. There were 2 more candidates in my row. I was last. Standing in Interview queue and waiting for my turn was very horrible moment. and then finally my turn came...My heartbeats would be @ 140..I could clearly hear my heartbeats and feel the pressure inside me. But i was pretending to be very cool and calm. :-)
Here my inter starts:
Me: Good morning officer.
Vo: good morning, your passport please.

Vo: Why are you going to US?
me: Meetings with clients and knowledge sharing with US staff.

VO: Why do you need 4 weeks for meetings?
me:I have two meetings with clients, and a knowledge sharing session of two weeks with US staff. I mentioned dates of meetings and training very clearly.

VO: Ok, Have you visited any country before? If yes tell me the dration.
Me: Yes, mentioned the duration for each one.

VO: Are you going to meet Clients or your Parent company?
Me: Both, I have meeting with both.

VO: Who is your client?
Me: Gave name

VO: Total exp.?
ME. X Years Y months

VO: Exp in current company?
Me: X Years Y months

VO: How yours current company and it's parent company in US co-work?
ME: (little puzzled). explained clearly.

VO: What is your role in current company?
me: I am leading a team of 14 engineers,..blaw blaw blaw

VO: Ok, Yor Visa approved
ME: Thanks :-)

No document asked other than passport.