Just an update. I finally decided to give YOU Broadband a try. And besides a couple of small gripes, I'm quite okay with it. Their speeds are satisfactory. I won't say I'm ecstatic, but a lot happier than I was with shitty D-Vois SSV. There have been a couple of days when there's down time or one can't connect, but their customer care is pretty helpful & they SMS to inform about downtime. I can't be too sure since I haven't used it more than a month, but it's a hundred thousand times better than D-Vois SSV. Hopefully, this thread will help all you Internet-stranded in Navi Mumbai.