:-[ :-[ :-[ hi i am using a bandwidth monitor tool which shows the connection speed (DU meter) and i found out that bsnl is providing only 1.3 mbps speed only which is almost half of the plan speed.
i got 2mbps speed for only1 day a week isn't that unfair?

Well, there must be some misunderstanding. BSNL do provide 2 mbps connection but on average you get 1.7 mbps max.
It also depends speed of source from where you download.
Try downloading many files simultaneously and see if still it doesn't come up near 2mbps.

I tested by downloading different files simultaneously but today connection speed was only 560 kbps and downloading speed 30 kbps.
so you can understand how time will it take to download even a small file.

Can you give me your ADSL line's stats ?
Like SNR up/down and attenuation too ?

Also, I suggest you try to download any famous linux distro as they are mostly with good servers.

how can i get information about my ADSL line and what is SNR and attenuation ?

The health of you aDSL line can be determined by value provided by your modem.
All the information can be found in your modem.
Modem can be accessed usually typing " 192.168.1.1 on your browser... address may vary modem to modem or on configuration. You may try 192.168.0.1 if above address doesnt work.

both of them doesn't work

Which modem do you have ?