Business Visa - B1

Hi first of all i am thanking you to all for your comments. It was very helpful for me in B1 Visa interview. I attended my interview at chennai.

After the common process i went to the second building and waiting for my token number by watching the monitor there for about 15 to 20 mins.
My token number comes and i went to the Interview window (Interview window is like a ticket counter. You need to stand and answer questions.
But there are mike and speakers for you and consulate officer. Carefully listen to the speakers for the question but keep direct eye with the consulate officer).

My Interview goes like following,

Consulate Officer (CO) : Hi good morning. How are you?
Me: Good morning. I am fine. How are you?
CO: Good. (I passed my PEP folder to her, Yes CO is lady. She looked my invite letter and the letter given from my office). Where are you going?
Me: YYYY XX, YYYY YYYY (City and state)
CO: To where?
Me: YYYY XX (company name).
CO: You are going to meet whom there?
Me: Said the name of the person who signed my invite letter and also said i am going to meet architect team there.
CO: What is the purpose of the Visit?
Me: Technical and Project Design discussions.
CO: Why 4 weeks you are going there?
Me: Explained about the project. There are lot of critical tasks in the project so it will take 4 weeks to finalize the design.
CO: Are you going to do any Productive work?
Me: No.
CO: Did you visited any other country?
Me: Yes.I travelled for a month last year to YYYY ZZZ.
CO: Are you married?
Me: Yes.
CO: (She typed for 15 seconds in her computer) Your visa is approved. You will get your passport by courier.
Me: Thank you. Have a nice day.
CO: Thank you.