Its not about MTNL its about torrents in general, all torrents are slow now days and there is a speculation that, MPAA has come up with some kinda software to jam the torrent speed on the network and also if you once in a time get high speed and get stuck at around 99 percent and wait for ever to download the whole file, know that, its Hollywood anti-priracy guys at work, they want to discourage torrent.