CHK THIS OUT:
http://mumbai.usconsulate.gov/ivfaq.html#date
My date is current, my case is in Mumbai, and I turned in my forms. How can I find out the appointment date?
We schedule immigrant visa appointments by the middle of each month for the following month. We send a letter to the address of record in each case.
We also post immigrant visa appointments on our web site every month. Please check currently scheduled appointments to see if you or your relative has an appointment in the near future. If a case number appears on this list but the applicant has not yet received an appointment letter, either the applicant or an authorized agent may pick up a Duplicate Appointment Letter from our Public Information window any business day between 9:30 and 10:30 a.m., except for Indian and American holidays.
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Keep this in mind
1) to reach to information window u hv to stand in a queue of dozen of ppl seeking different kind of info from the “authorized agent” at information window.
2) authorized agent helps u and gives sufficient time to answer ur queries.
3) if u cant make to visit agent “between 9:30 and 10:30 a.m” (try to make it on time, though the actual time there is 9:00 to 11:00 am) and if u need to seek an urgent info u can also meet some agent after 11:00am, but its not at the same information window (ask security there, who is standing to watch info-seekers at information window)
4) for this u hv to be in mumbai or ( I m not sure about - if any of your family members thr at mumbai, cd also collect the pkt IV+apt letter from authorized agent ASAP..the agent would ask ur BMB case number to the member!!...but make sure by calling consulate ppl - abt family member collecting ur aptLtr+pktIV from the information window on ur behalf.???)
5) vfs ppl (crew of very young ppl) r not much aware of the deeper-rules/knowledge as compared to the info-window-agent(one who looks elderly n experienced). Vfs ppl are much on or around collecting documents …if something goes wrong they wd tell u to visit consulate agent, so better to get right info thru consulate-agent.
6) But the thing is the call easily connects to vfs but hardly connects to consulate