looks like no one is interested in Nitdroid anymore. anyway if i remember correctly i tried to go back to Nitdroid 12 from ICS by extracting Nitdroid 12 (umay) archive in Nitdroid folder to replace ICS files but it didn't started.

The only solution of which i think of is to remove Nitdroid and re-install it. If anyone have any better solution then please post here.