When conflicting wills exist regarding property and bank fixed deposits, the most recent will generally prevails, regardless of registration. If your brothers present a later, unregistered will contradicting the registered one, legal action may be necessary. Banks may release funds to a nominee, but they must distribute them to rightful heirs. You can involve the bank in legal proceedings to prevent premature release of funds. While amicable settlement is ideal, be prepared to pursue your rightful share through civil court if necessary.