I installed new ROM JB cm-10.2-20140101-UNOFFICIAL-cooper++.ZIP developed by Mardon. It was working cool.
Before this i tried to install cm-11-20140102-UNOFFICIAL-cooper.zip experimental KITKAT ROM and it seems some bugs are there, and its not booting properly.
I am awaiting next release from Mardon to install Kitkat Rom on my device Galaxy ACE s5830.
Finally I am a new user and glad to say its my first comment on XDA forum.