You have posted other threads at:
https://www.lawyersclubindia.com/forum/Two-registered-will-137416.asp
https://www.lawyersclubindia.com/forum/Can-a-regsiterd-will-canllaged-137685.asp
https://www.lawyersclubindia.com/forum/Two-registered-will-137687.asp
What exactly is your issue.
WILL or legal heirship, Inheritance?
Which personal law applies to deceased female owner e.g.: Hindu Succession Laws?
If the property was in the name of second wife ( self acquired/self earned/absoloute) then she is owner. If she has not left any WILL and has not disposed the property in her life time bya valid deed, then the first right is of Children born thru her own womb.
If she was Hindu and has not left surviving husband and children then her estate ( ( self acquired/self earned/absoloute) ) shall devolve upon the heirs of the husband ;In such case if you are the lone heir of her husband (your father) then you can inherit.
If the women has acquired the property from her Husband, in that case the first right will be of the heirs of her husband , in case of absence of his sons or daughters. In such case if you are the lone heir of her husband (your father) then you can inherit.