I'm a user of MTNL 3G prepaid Rs.4500/180 days. After today midnight my connection was supposed to end it's 180 days, but half an hour after midnight it's still working! So what's going on? I don't have any balance on my sim, only a few Rs maybe. Are you unable to connect after that or do they start charging 1p/10KB? I fear that they might charge me exorbitantly with their 1p/10KB scheme. How can I check?Thank you very much.