domain already in use?

[sandhutech43]

today when i was changing my main domain to sandhutch.in ,there was a error which was telling me domain already in use.the domain nameservrs are pointing to x10hosting and i dont used it.but there is a subdomain in main menu crack.sandhutech.in and in cpanel it does not show any subdomain .please help me.i am in hurry

[Corey]

You need to remove sandhutch.in from being an addon domain before you can switch your primary domain.

[sandhutech43]

i deleted these but still these are showing .i dont know what is problem