The properties of your grandfather was divided among your grandfather's children. In that you have no rights.
Your father only had the rights over his share in his father's property since his father died intestate.
Thus during the lifetime of your father you cannot claim a share or right in it.
As far as the jewels taken away by your maternal uncle, your wife can file a criminal complaint agaisnt him with the local police under section 406 IPC and can recover the same from him.
The validity of your father's second marriage can be questioned only by your mother but unfortunately she is not alive now and the fact is tht she had left you people long back to toil with your grandparents, hence you cannot question that too.
Thus you cannot take any legal action against your father for the injustice he had meted out to you.