Business Visa - B1

I am sharing my interview experience in Mumbai consulate with the VO. Can anyone please explain why the visa got rejected?

VO: Hi, can you please pass the passport.
ME: Yeah, sure.

VO: What is your purpose of visit?
ME: CDS user training meeting

VO: When do you intend to travel?
ME: I will start on 25th from here and reach there by 26th of Nov. (also told her the return dates which is within a month)

VO: For how long have you been working with your employer?
ME: 4 months

VO: What you will be doing going there?
ME: I will be getting training on the design practices in US factory, also need to learn their manufacturing limitations and practices

VO: Have you been trained earlier?
ME: NO, not about the design systems their in US factory. I need to learn and come back to support the factory from here in India.

VO: What is your annual salary?
ME: xxx lpa.

VO: I am sorry, your intend of activities doesnt fall into the category of visa you applied.
(gave back the passport with 214(b) letter)

ME: (baffled) But i have the detailed schedule of training and invitation letter from US.
VO: Sorry, no bargaining.

ME: What to do now?
VO: Tell your employer that it looks like you are going there to work.

I then left the counter with no clue.
To add a few notes about my application,

1. I have total 3 years of experience.
2. I visited china two months back in business visa, and Japan earlier with my previous employer.
3. I've liked a few FB pages that may post controversial sociopolitical memes and pictures, does that affect anyhow?

My employer asked me to apply again in same category, and I about to schedule my interview. Any idea how to overcome or where I lacked? (sometimes I fumbled and lost eye contact)