Under the Companies Act, 2013, which of the following companies must file its articles of association…

Section 7(1)(a) of the Companies Act, 2013 requires the memorandum and articles of the company, duly signed by all the subscribers to the memorandum, to be filed with the Registrar for registration. This applies to every company, whatever its type. Under section 5 read with Schedule I, a company's articles follow the applicable model form (Tables F to J), and a company may adopt all or any of the model regulations. Even so, articles must still be filed.

The earlier rule that a public company limited by shares need not register articles of its own no longer applies (formerly section 26 of the Companies Act, 1956). The choices limiting the duty to particular kinds of company, or exempting a public company limited by shares, are therefore wrong.