if a person who is registered under gst ,rents out a property which is owned by his wife who has no other source of income then whether gst would be applicable on such rent or not.
No not at all .... Gst is based on PAN , its being computed as per PAN & your wife must have her own PAN . So it will be counted in Your Wife Pan. Moreover if the rental Income is from residential House for no commercial activities its being Exempted As per Notification 12/2017 CT (r) And if rent is from commercial property & exceeding 20lac yearly then your wife is also liable to Obtain Registration under GST