Currently we are facing property disrupt for redevelopment property. Property on my Great Grandfather name who died near 1972 .

He had two wife and that wife had two respective children (both are boys). One Great Grandmother died in 1958. One grandfather have two children (both are boys- My dad belong this category) and another grandfather have 4 children (2 boys and 2 girls). Both the grandfather died in near by 1970 & 1972.

My Granny (My dad mother) died in 2007 and another granny still alive.

From last 50 years, My dad is living in that property.Only my dad and another granny who still alive name mention in Mumbai Mhada nomination document.

So I want to know as per succession law how much share will come in my dad account?