Visitor Visa - B2

today my mother got visa in second attempt. She went for Hindi Interview in Delhi.
Mom gave sponcership papers and her passport altogether. Visa officer was turning the pages but not seemed to read them.
VO: why do you want to go there?
mom: I want to visit my daughter.
VO: How long your daughter is in USA?
MOM: About 10 years and she is a citizen.
VO: What does your son in law do?
MOM: I know he is working for some medicine Company) (He is is pharmacist here).
VO: Is he a pharmacist?
MOm: hmm.. yeah.
then VO asked her to wait for five minutes and she was called again on the other counter. It was another Visa officer.
Some of the questions were same as the first one asked. and then she asked: how many children do have?
Mom: three. one daughter is in USA and one son and one daughter is here and my daughter is unmarried.
VO: What does your son do?
mom: business. and I also help him in business.
VO: do you have papers?
mom: yes and tried to show but the officer said no need to show.
VO: do you get pension from your son?
mom: no I live with him i don't get any pension.
VO: do you have any other relative there?
mom: yes my sister's daughter.
VO: then your sister must be living there too?
mom: no only her daughter. all the other relative of me are here in India.
VO: OK you will get your passport in mail.
I don't know how much validity visa she got.we are waiting for the passport.
on her first attempt they didn't even see any of her papers and the visa was rejected.( I am pregnant) this time I told my mom not to mention anything about my pregnancy and to give the papers as soon she reaches at the counter. She did the same.
Thanks to Immihelp. I helped me a lot to prepare the papers and when I read the experiences then i knew that sometimes in second attempt the visa can be granted. thank you for your help.