Firstly, you should issue a legal notice, informing your intention for partition of the properties to other legal heirs. If you receive any reply from their end, alleging that your father executed a WILL, bequeathing his estate to them, disinheriting you in the said WILL, you again issue another legal notice, demanding them to send Attested Xerox copy of alleged WILL. Mere execution of WILL is not sufficient, but the same shall be executed by the testator in a sound and disposing state of mind in presence of two competent witnesses who shall also attest the WILL. You did not state how your father died. If he was not hale and healthy for a longer period or if he was not in sound and disposing state of mind at the time of alleged date of execution of the WILL, the said WILL is not legally valid. If your brothers do not send the Xerox Copy of the WILL, you can initiate legal proceedings before appropriate Court having competent jurisdiction, seeking for the relief of partition of your father’s estate. It is most advisable to inform the concerned Banks to immediately stop the operation of the Joint Account. You can issue a legal notice to your brothers, demanding them to return your Pass Port and other papers. If they fail to comply with your request, you can issue a paper publication, intimating the general public not to deal with your brothers in respect of your father’s estate and your papers and Bank transactions. You can lodge a complaint with police department for relief. if the Police fail to take any action, you are entitled to file a private complaint before Criminal Court for action.