I used Qtel for 3 yrs with no issues. Only one issue I had with the Mozaic IP TV and they solved it with due seriousness of it and were flexible in timing for their technical expert to visit the my house as per my convinience. Vodafone is too rigid in that...

And yes, Mr. tayseershah, there are no issues with the laptop. It's not old and it works fine with Qtel and other similar service providers in India too. I checked that part too before coming to the conclusion.