MTNL is utter useless......I am in Mumbai, and i too am having similar problems.I am on DSL 495 Combo plan since June 25, 2010. Upto September 20, i consistently got a download speed of 100 Kilobytes per second. And from that date onwards, it hardly averages 30 Kilobytes per second. However, my Upload speeds have not been affected at all. I cant understand what these people are doing.I called up their helpline no. and they said it is a line problem. And still no one has even come to check the wiring and all. I had even complained to TRAI. But even they arent responding. It seems they are the agents of these Profiteering telecom players. I configured everything as they had instructed me.Despite repeated complaints, they sent peon like guys 2-3 times only at my place, and they only gave 1 standard reply - "I will forward your complaint to my senior" (Of course in Hindi). Can someone help me in solving my issue??