My grandfather bought land in Bihar for my uncle before 1956. After his passing, the land was divided equally among his sons. Now, my cousin is claiming the entire property. What are the legal rights in this situation?

Your uncle’s claim to the entire property is likely invalid as the land was divided equally among your grandfather’s sons after his passing. Your cousin’s claim can be challenged legally based on the inheritance laws of Bihar and the documented division of the property. You should consult a lawyer to understand your specific rights and legal options.