Thanks to the "immihelp" for providing such a comprehensive info on what needs to be done and how to prepare for the interview. We benefited a lot from the experiences posted by other users also.
Actually my mother wants to visit my sister & bro-in-law in US, as my sister is expecting a baby by this month end. We prepared my mother not to mention it unless they ask first.
At the time of interview, they didn't ask to show even a single document, not even DS-156, as I submitted it through the web. While my mother was opening the file for the documents, they asked her not to open the file itself.
There are two main points that favored us.
1. We applied for Telugu translator through the
www.TTSVisas.com
2. Submitting the DS-156 form through the web
http://evisaforms.state.gov/
There are two versions of the form DS-156:
One version can be filled online and submitted. Then you get back a form within minutes on the screen with barcode which you can print , sign and submit at the time of your interview. This makes the visa process faster as they will already have your info on their system. I recommend this to be done after the application is properly complete.
The second version is of course filling a hard copy.
The first way is the best.
They asked 7 simple questions:
1. To which place you want to visit in USA ?
xyz
2. What is your daughter's birth date ?
(She said the year wrong. They asked again "hmmm...m?"(like "what?"). Then she corrected it.)
3. When did your son-in-law has gone to USA ?
Jan 2001
4. When did your daughter has gone to USA ?
Apr 2004
5. So Why do you want to visit your daughter in such a short time of 8 months ?
Want to visit some tourist places in the holidays
6. How long will you stay in the US?
4 months
7. Why your husband is not accompanying you for the trip ?
He is working as an (so & so) officer with state Govt. He has no leaves for such a long trip.
The translator informed her "Your Visa has been Okayed, it will be send through the courier".
To our surprise, we received it in 24 hours to our house address in Hyderabad. After receiving the Visa only we got to know that it is 10 Years valid.
Thanks a lot to all who posted their experiences and FAQs.
Best of Luck for the aspirants.