Business Visa - B1

Thanks to everyone for posting their experience. I had already travelled to US last year on H-3 visa, so i had travel history. Also my company is a reputed MNC. Below is my interview details.

VO - Good Morning. Passport please.
Me - GM sir. Here you go.
VO - What is the purpose of your visit?
Me - I have a series of meetings with my stakeholders to define future roadmap of our work that i can do when back to India
VO - How long do you intend to stay?
Me - Sir, 4 weeks.
VO - Sorry, 4 weeks? Almost a month! What is it that your are going to do for a month.
Me: Sir I will be meeting my team and all other teams we work with to understand the best practices they use and gain synergy out of that meeting.
VO (continuously typing something) - But why do you need to be there for a month?
Me - Sir, we initially planned for 3 weeks. But there are few senior people travelling from London in the last week. So we decided that i should meet them as well.
VO - How is this visit of yours different from when you last visited?
Me - Sir, this is for meetings. Last time I went to training on specific products and applications used by our team
VO - Ok, so you would be meeting for discussing products and services
Me - No sir. For discussing project requirements and strategies.
VO - Ok. Your visa is approved.

He didn't ask me for any documents. But make sure to carry all of them, specially carry your employment contract letter, invitation letter from company and last 3 months of payslips apart from everything else, just in case.