Dadi vs Dadi Ka Chacha: Share of Ancestral Property

Arre, maine read kiya hai ki ancestral property ka share kaise decide hota hai. Ek scenario hai, mere parivaar ka. Dadi 10 bade bachon ke maa hai, phir bhi woh apne paagal chacha ki dukaan chalati hai. Chacha ke 5 beta hai aur unke paas share hai. Dadi ka claim hai ki ancestral property ke 3/4 hissedaar woh hai, aur chacha ke paas baki 1/4 ho gaya hai. Lekin ab Dadi apne 5 betaon ke saath chacha ka challenge karta hai ki unko apne hisse ka share dena chahiye. Kya aap sochte hain, kya legal remedy apply karta hai?