Hi Jyo,
It was, indeed, a sleepless night. I stayed up until I heard from her. The wonderful news is that she got the immigrant visa.
The following is her interview experience:
Her appointment was at 9:00, she showed up around 8:30 and stood in line. Later realized that she doesn't need to be in line, the line is for non-immigrant visa appointments. For IV appointments, you go straight to the guard at the gate and show him the IV appointment letter and they will let you inside. For marriage-based cases, they also allow the US citizen spouse to accompany the applicant inside.
Once inside, she submitted her papers to the Indian consular staff. They asked her for the following supporting documents:
marriage certificate, Police Clearance, birth certificate or affadavit, wedding photos (for marriage-based cases only). They only collected the photocopies, no originals. She was asked a few general questions like date of wedding, where does your spouse live etc. She was given a number and asked to wait.
Most of the people ahead of her were families with kids, and some of them were missing documents or photocopies or photgraphs were not right, so they left and returned, presumably with the problem corrected. Anyway, she had a long wait and was only called at 1:00PM.
This time she was interviewed by an American officer. He asked no questions, just to swear that all the info in DS230 is true. She was then fingerprinted (index fingers only) and was told to expect her passport in 4 days. She said that the staff were very courteous and friendly and as long as you bring the documents that they ask you to bring, there should be no problem at all. Of course, now that documents will need to be submitted to VFS, it should make it even better.
After waiting for so many years, our ordeal seems to be finally coming to an end and today I am one really happy camper