BSNL's billing system for Dataone is totally messed up with respect to the "Night time unlimited" thingie.

Here's how you beat the system : Use software to control you connections (don't do the PPPoE using the modem). Use something like rp-pppoe and simply have a cron job that re-connects you at say 0210 (10 mins into the "unlimited period") and then again at 0750 (10 mins before the period ends) and schedule all your downloads in that session.

Done. Download all you want and you won't have to bother about excessive/wrong billing.

Today isn't one of those "nice" days. First up, every tom, dick, harry and their brothers and sisters are on strike. Then, God decides to water his minions early in the morning with more seemingly lined up in intervals throughout the day. Driving in the rain is fine, as long as your internal climate control system (read AC but hey, the former sounds cooler) doesn't give up on you abruptly. Mine did and I had to stop and wipe the windscreen internally which I just hate doing. Opening the windows wasn't an option since I tried that and got splashed by a fellow citizen. Thank you!

BSNL and VSNL then decide to play their games. ( 40% loss for what??? )

Crazy. The problem resolved itself like 5 mins ago after 2 hours or so.