Specifically to tell you that i havent had experience of MTNl but let me tell you as far my mind goes that if the downloading speed is about 15% of browsing,then its good speed i must atleast say.You said you arent getting 30 kbps for 256kbps browsing and you get 20-25 kbps dwnlding speed.This is suppose of abt 25 kbps is normal speed with any broadband of 256kbps and the GM is right.
having more than this speed(downloading) is extra speed or benefit you getting but if your speed is getting below 15 kbps you should surely consider this matter.As far abt 20-24 kbps is there, its normal and good.
Now you must surely say yourself you didnt knew this earlier..(paata nahin..tha)
