My father took 2 FDs in SBI. But he did not nominate anyone in FD.Also he does not have any will. He left behind my mother and we three siblings. SBI tells in our case now all legal heir have to sign papers. But one of the sibling does not want to sign any document related with FD. Bank is insisting signature of all legal heir compulsory. Amicable settlement was not possible at all as that sibling is quarellsom . Should we leave the idea for getting FD amount ?