As some of us new that sessions in BSNL used to be of 30 minutes duration. And, if we connected at 7:59 AM, we could use free broadband upto 8:29 AM. But looks like BSNL has woken upto this weakness, and rectified it. I suffered a loss of around 100 MB due to realizing this 3 days late. Thankfully, I should add! So, whoever used to exploit this please take care from now on!
Proof, of BSNL refreshing its sessions at 8AM
Another development is that from now on users won't see their free usage, from 2AM to 8AM...