Please read Dataone Hacks - part 1 before proceeding !!
Now, more tips to save your BSNL Dataone broadband connection bandwidth.
Use Firefox + Adblock + Flashblock for net browsing.
Yes... Firefox is a wonderful browser and it has useful extensions too...
So download firefox first to save your bandwidth.
After installing firefox, now install an extension called adblock.
Then install another extension called flashblock.
Both of these stop unwanted flash adds from showing in your browser and thus save your download time and save bandwidth for you !!!