It increased from 3072 to 3296.. Not much effect. You can't get better than this. I guess you will get download speed in between 320-370 kbps with this line speed. If your line used to drop connection, it would be better with these settings, so keep these.
Wait till BSNL improves its line or sets up a new DSLAM near your home. Else this is the best you can get. Else buy new connection if you want more speed.