Notice under CRPC 125 served to me by my wife

My wife left me and went to her parents along with 2yr baby after having serious fight with me and from there she serverd notice under CRPC 125,as a maintenance amount how much she can claim, can she claim property which is on my name or which are in joint name such as property which is in joint name with me and my mother or father. How to face this case, please help.