Response from NVC
Just now called NVC, they say that they have sent case details again to Chennai in the 1st week of Jan. I asked if they have sent electronic copy or the hard copy of the petition. According to this NVC guy, he was told by his supervisor not to disclose this and we need to contact Consulate for further details. I guess they have sent electronic notification again, as NVC no more has original petition papers. I hope Chennai accepts our cases and give us all an interview date in Feb.