Business Visa - B1

Hi All! I'm looking for advice on my 2nd attempt in Hyderabad next week.

I had my first attempt in Kolkata and below was my experience:
VO: why were you in UAE?
Me: I have done my schooling there for 10 years, however my family is back to India, my dad works in Qatar for now
(Just to add on, i have left UAE in 2006 and have gone back only once for a visit to my sister, who is now back in India too)

VO: Whats your highest degree of qualification?
Me: Masters of Business Administration

VO: Are you working for YYYY company?
Me: Yes

VO: for past 2.5 years?
Me: Yes

VO: Whats your purpose of visit?
Me: to conduct business meetings and knowledge sharing sessions with my Client

VO: what does your company do?
Me: told them its into investment banking and serves clients onshore

VO: whats your duration of stay?
Me: 4-6 weeks

VO: as of now, you donot qualify for B1/B2

i have my 2nd attempt next week in Hyderabad. i need to travel for 4 weeks to understand a process and come back to India to implement the same.

My questions are:
1. How do i prove home country ties as my father still works in Qatar, although my whole family is back here with my new born baby niece
2. Why am i only selected for this job?
3. why was your visa rejected last time and how it the case different this time?