yea i used Boot CD to boot, actually yesterday night i messed up totally with booting & i wasnt getting to OS selection menu, so now i have removed Kubuntu , OS from , that i guess it simple removed the GRUB menu too, for taht i have to boot again as still i got two OS selections just got rid of one OS selection, their are many tools inside it , i used GAG tool , i want if someone know exact menu items i should hit to do the fixing of boot selections..
now i m going to reboot and see what i can do myselft and will reply later..