Update from my end:Firstly the hopeful good news. It seems the 'free-gifted' hidden adding of extra mb's is not happening for the past 2-3 days now. The DL being shown by the mtnl site and the bandwidth meter i am using are showing more or less the same values. But the crux is...If now the site readings and the meter readings are matching, that means the software is reasonably accurate. And that means it is recording the actual usage. And THAT means that some hanky-panky did take place in the first few days of the month...