it is very difficult to get one, unless there is real emergency. according to bcis, emergency is death of a close relative (parents or siblings). in such a case, u need to get a death certificate faxed from india.
i had to travel 2 months ago but could not get an emergency AP despite submitting a fax stating that my mother was hospitalized.
anyways, no 2 experiences are similar. u could give it a try..