Suppose the Creditors bring an attachment before judgement against your and your mother's property for recovery of the dues of your deceased father, the onus of proving that these properties were purchased by you from your own funds without taking any money from your father. It depends upon when you purchased the properties in your name, what was the source for purchasing those properties and likewise for the gift you gave to your mother. Important is what was your age at the time the property in your name was purchased and what were earning at that time.
All this is because, it can be imputed that your father had purchased these properties in the names of Son/s to avoid the properties being proceeded against.