you still have not responded i believe to the question on where does he reside. i mean there must be a dividing road in between your area and his if excitel serves him and not you. and if excitel has reached that area, it might soon come to your area so that's something to be cheerful about. though here in gurgaon, excitel does not seem to be expanding to my neighboring sectors. i guess my neighboring sectors have existing competition. nextra and spectranet are there based on banners i have seen around my area. both are missing from my sector.
if you know the password... just login to his account at my.excitel.com and file a complaint from there.