Thank you for a speedy response. Please find below the results of df command.
Filesystem 1K-blocks Used Available Use% Mounted on/dev/sda1
10608852 3565148 6504728 36% /tmpfs 513256 0
513256 0% /lib/init/rwvarrun 513256 216 513040 1%
/var/runvarlock 513256 0 513256 0% /var/lockudev
513256 160 513096 1% /devtmpfs 513256 216
513040 1% /dev/shmlrm 513256 2192 511064 1%
/lib/modules/2.6.28-18-generic/volatile/dev/sda6 12223160 30380
11571872 1% /media/E/dev/sda7 10807948 26824 10232108 1%
/media/F/dev/sda8 3194048 5924 3025872 1% /media/G