What a Bad Luck!.
I tried changing the filesystem to FAT32,NTFS using GPART LiveCD.
The time taken for GPART to format the Linux HD was surprisingly fast.(perhaps suspiciously fast!)
Still Windows refuses to see it.
One hard disk was recognized by BIOS as ST380817AS(called SATA).Another as something like ST380817A(I don't remember exactly.But didn't end with S)
Former is 80GB Win XP HardDisk and Latter is 20GB Linux Harddisk.
Has it got anything to do with this?
How can I format the Linux Completely?(After formating with GPART still GRUB is Loaded if I tried to boot with the Linux HD).
Please help guys( )