H1B, H4 Visa

I attend the interview on 30th june. in the Chennai.

I started filling the ds 160 application before 30 days.without completing ds 160 take the appointment.

2 days before i realized my DS 160 expired(save 30 days only) not able to pull the application.Call the customer they suggested no need to cancel visa appointment fill the new application and take in to bio bio metric office and they will update the ds160 confirmation number

interview day:

i have 2 kids one is us citizen and second one Indian citizen they allowed both inside embassy

interview question:

1. Who is Petitioner?

2. office location?

3. Title of the job ?

Wife'

1. how long you married

kids
1. how old are you?

Thanks