Your day usage quota is Not 2.5GB ( full month) will be reduced to approx 1.25GB.
ShaPlus Bandwidth Meter - Freeware to display bandwidth consumed for session, day and month use version 1.1. to check locally in your computer. Timer available only for usage check.
Also another program. homepages.paradise.net.nz/link/tbm/ ( add http://) with timer.
Use it for checking later with BSNL readings and compare with tautology meter.
I am using them without any problem. almost same.Check your settings.
ShaPlus Bandwidth Meter - Freeware to display bandwidth consumed for session, day and month use version 1.1. to check locally in your computer. Timer available only for usage check.
Also another program. homepages.paradise.net.nz/link/tbm/ ( add http://) with timer.
Use it for checking later with BSNL readings and compare with tautology meter.
I am using them without any problem. almost same.Check your settings.