At last BSNL people came to my shop for checking for the problem I reported on Friday.At first they were not ready to accept that, there is problem in connection. After several minutes of checking they said, there was a problem in my PC, [lol], that's the knowledge of this BSNL people.Then I pursue them to check it on there laptop which they bring along with them, they check it.Even then they said it was fault in my system.😡After several minutes of checking and talking with there superior finally they accept, there is problem in connection.They said they will check from exchange's MTF section and change pair, and blah blah blah.Today is Monday, I don't think any thing was done to rectify problem, as problem is still persist.Tomorrow, they asked me to come to exchange with modem & adapter for checking.Lets see, what happens tomorrow.I will keep updating about the same.