What can be done?
Do I have any rights in that property or I should hand it over to my mother as has the title?
Just like that getting the documents without getting the property transferred to yor name by a registered deed shall not confer title on you to the property.
Since the property is on yor mother's name, it is her own and absolute property, you may give the title documents to her.
I also have GPA of this property as my mother was ready to sign but her mind changed and now she doesn't want to and has stopped talking to me ,wife and kid.
What is your intention on this?
Is the GPA deed a registered document?
If your mother has not executed the GPA deed in your favor then this document is not valid.
If your mother do not want this property to be sold, why do you insist on it?
Legally your mother is the absolute owner of the property whether she signed the papers or not since the property stands on her name.