Annual return filing requirement for foreign companies mandates detailed share, member and charge particulars and electronic authentication. Foreign companies with share capital must prepare and file an annual return with the Registrar within the prescribed period after the financial year end, containing specified particulars about the registered or principal office, any member or debenture-holder registers kept in India, detailed disclosures of share capital (including nominal, called-up, paid-up amounts, calls received and unpaid, commissions, discounts, forfeitures, share warrants) and total indebtedness under registrable charges. The return must list current and past members, debenture-holders and officeholders, and be filed in the prescribed Part II form (or equivalent), with mandated attachments and authentication; electronic filing requires digital signatures under the Information Technology Act.