DataOne is good, when it works, that is. However, if it goes down and if you need help, it is a really frustrating experience. I have called their toll free number at least 30-40 times in the last 2 months. (but got to speak to someone, may be 10 times) Here is my experience:
You start with calling 1800 424 1600 and navigating through the menus till you get to a piece of music that repeats and repeats..and they keep remindig you that your call is important to them.. After listening to it for a few minutes, you really would want to hang-up. It is such an irritating piece. Then one of these three happens: (1) call gets dropped.. too bad.. dial again and listen to that music again.. (2) silence... you hang up and the try again.. (3) A new piece of music starts playing...
Wait again (while they assure that your call is still important to them).. If you are lucky, you get to speak to someone after about 4-5 minutes. Otherwise, silence or dropped call.. and the story repeats..
If you ever get an agent on line, then they will ask you all sorts of questions, including details of your neighbors’ dogs. Then they will say one of "please switch off everything and try again" or "please reboot" or "take a walk ad try again" etc.. Or they put you on hold forever and you hang up in frustration.. but the horror of having to go throuhg the torture again wil make you want to stay on.. And next time you come in, you get to a different agent, and again the same set of questions, including the name of your neighbors dog will be asked... Man, it is fun or what !
I finally used my friend’s friend’s friend’s influence (because he is a senior manager in BSNL) to get the job done. Calling their service is an utter waste of time.