Advance remittance reporting requirement: banks must report large advance payments for rough diamond imports to the central bank. AD Category I banks must submit Annex IX reporting advance remittances made without a bank guarantee or standby letter of credit for import of rough diamonds when advance payments meet the high-value threshold; the template requires bank name and AD code, mining company and importer with IEC, amount of advance, whether import evidence was submitted, and authorised official's signature, to be filed to the concerned Regional Office of the Reserve Bank of India within 15 calendar days of the close of each half year.